LONDON — She climbed the steps of Caxton Hall register office on the morning of May 6th, 1944, wearing a suit instead of a gown, carrying a small bouquet, and missing almost everyone who shared her blood. Kathleen “Kick” Kennedy, the fourth child of America’s most ambitious Irish Catholic dynasty, was about to marry the future Duke of Devonshire, heir to one of England’s oldest and most storied titles. Her mother was 3,000 miles away in Massachusetts, refusing to acknowledge the date on a calendar. Her father had cabled his disapproval and stayed in America. Of her eight brothers and sisters, only one had come, her eldest brother, Joseph Jr. , a naval officer who had pulled rank on his own leave to stand beside her in uniform as the only Kennedy witness to the marriage of a Kennedy daughter. Outside, London was a city rationed down to its bones, blacked out at night, waiting for an invasion of France that everyone knew was coming but no one was allowed to say when. Inside the register office, a girl from Boston was marrying into a family that had spent four centuries building precisely the kind of inherited power the Kennedys, for all their new American money, did not yet have and quietly longed for. This was the story of a girl raised inside the strictest version of her mother’s Catholic faith, who fell in love with a Protestant Marquis, then a second time with a Protestant Earl, and who discovered two times over that the cost of following her own heart was not measured only in argument or tears, but in absence, in the specific irreversible absence of a mother who would not come to her funeral, either. Kathleen Agnes Kennedy was born on February 20th, 1920, in Brookline, Massachusetts, the fourth child and second daughter of Joseph P. Kennedy and Rose Fitzgerald Kennedy. By the time she arrived, her parents already understood, in the particular American way of a rising Irish Catholic family, that their children were not simply children. They were a project. Joseph Kennedy was a man building a fortune that would eventually touch banking, film, and liquor importation, a man who would go on to chair the Securities and Exchange Commission and serve as ambassador to the Court of St. James’s. Rose was the daughter of John “Honey Fitz” Fitzgerald, a former mayor of Boston, and she had grown up inside political life the way other children grow up inside a family business. Between them, they would have nine children in all, and they would raise every one of them, daughters included, to believe that competing and winning was simply what a Kennedy did, in tennis, in sailing, in conversation at the dinner table, in life. The house Kick was raised in was not a single house but a sequence of them, a home in Brookline, then a larger one in Bronxville, New York, and every summer the long white clapboard cottage at Hyannis Port on Cape Cod that would become, more than any other address, the place the family thought of as home. It had 15 rooms, a view of Nantucket Sound, and eventually a sailboat for nearly every child old enough to hold a tiller. Joseph Kennedy provided for his family with a thoroughness that left little material want, even as his frequent absences for business in New York, in California, in London left a different kind of want that no income could fill. Rose, devoutly Catholic, attended mass with a regularity her own daughter would later describe as something closer to a discipline than a habit. She raised her children inside a faith that did not bend, that drew firm lines around what was permitted and what was a sin serious enough, in her own words, to risk a soul’s damnation. Kick herself was something different from the start, not rebellious in any dramatic door-slamming sense, but irrepressible, the way a current is irrepressible. Her own nickname, the one that replaced Kathleen’s so completely that even strangers used it, came from that high-spirited quality, the sense that she moved through a room the way a small jolt of electricity moves through a wire. She attended the private Riverdale Country School, then the stricter, more devout Noroton Convent of the Sacred Heart in Connecticut, the kind of education designed to produce exactly the sort of Catholic daughter Rose intended to raise. It did not entirely take. Kick was popular with boys in a way that worried her mother, charming in a way that disarmed nuns, and possessed of a wit that her own brothers, among them a future president, found sharper than their own. She was, in the words of one biographer who would later study her, the only one of the nine Kennedy children who did not march down the prescribed road. Throughout her life, the people who knew Kick best would describe not a single object so much as a single motion, the particular irreverent ease with which she could walk into a room full of Dukes and Earls and instantly make herself at home, chewing gum on a London street where she was meant to be curtsying, calling the Duke of Marlborough “Dukie Wookie” to his face. In 1938, that fearlessness was given a stage. Joseph Kennedy was appointed United States Ambassador to the United Kingdom, and the family crossed the Atlantic into a world built entirely on the rules Kick had spent her childhood almost but not quite obeying. She was 18. She made her formal entrance as a debutante that May, was presented at Queen Charlotte’s Ball, and was within a season declared by the English press the debutante of the year. She studied at Queen’s College in London, and she built a circle of friends that crossed every line her mother might have wished to keep intact, friends who were Protestant, friends who were aristocratic, friends whose families had spent four centuries building precisely the kind of inherited power that the Kennedys did not yet have. It was supposed to be a temporary posting, two years at most, a credential on the way to something larger for her father. Instead, for Kick, it would turn out to be the place she gave her heart to twice and the place she would eventually be buried. Among the friends she made that first English season was a young man named William Cavendish, known to nearly everyone as Billy Hartington, the Marquess of Hartington, eldest son and heir apparent to the 10th Duke of Devonshire, heir in turn to Chatsworth House, one of the largest and most storied private estates in England, and to a dukedom that stretched back through nearly five centuries of English history. Where Kick was quick, voluble, and instinctively warm to strangers, Billy was reserved almost to the point of shyness, slow to speak, careful with his opinions, a young man more at ease with a book or a quiet conversation than with the kind of room Kick could fill simply by walking into it. He had grown up inside a family that was, by reputation, one of the most politically prominent and most vocally anti-Catholic in England. The Cavendishes had for generations been associated with a Whig and later Liberal and Unionist political tradition deeply suspicious of Catholic influence in English public life. It was, on paper, about as unlikely a match as London could have produced, the Catholic ambassador’s daughter from Boston and the Protestant heir to a dukedom whose family had spent 200 years arguing against exactly the kind of Catholic emancipation that had made her own grandfather’s career possible in Boston. None of that pedigree stopped the two of them from talking. They met, as so many of that era’s English friendships began, at the ordinary social machinery of the season, parties, dances, the slow circulation of young people through country house weekends. And what began as friendship between two 18- and 20-year-olds deepened in the months that followed into something neither of them had quite been looking for. They talked late into the night whenever they were in the same house, the way people do when they have found, almost by accident, the one person in the room who does not require performance. Billy was unlike anyone Kick had grown up around, unhurried where her brothers were competitive, certain in a quiet way rather than a loud one. And it was precisely that contrast, friends would later say, that drew her to him. Here already is the cost the story will eventually ask her to pay. A Marquess in line for an English dukedom does not simply marry where he chooses. He marries by the unspoken law of his class and his church, a Protestant Englishwoman of suitable family, and he raises Protestant children who will one day inherit not just a title but a particular and very old idea of what an English ducal family is supposed to be. Falling for Billy Hartington meant falling toward a wall that neither of them had built but that both of them would eventually have to climb, or refuse to climb, or be broken against. The wall broke the timeline before either of them had to decide anything. In September of 1939, with Britain newly at war with Germany, the Kennedy family returned to the United States, Kick included, summoned home by a father who did not intend to let his children remain in a country under blackout and bombardment. For nearly four years, the romance that had begun in London continued at the distance of an ocean and a war, sustained by letters, by the occasional leave, by whatever Kick could learn second-hand of a young man now serving as a member of Parliament for West Derbyshire, elected, remarkably, while still in his early 20s and increasingly drawn toward active military service himself. Kick, restless in America, eventually found her own way back across the Atlantic in 1943, taking a position with the American Red Cross in London, in part, her friends understood perfectly well, because it was the only respectable way for an unmarried Catholic ambassador’s daughter to return to the one country and the one man she had never stopped thinking about. What she returned to was a war-flattened city and a man who had not stopped thinking about her, either. Working out of Hans Crescent, the Red Cross Club near Knightsbridge, Kick threw herself into the work of looking after homesick American servicemen, organizing dances, pouring coffee, writing letters home on behalf of boys who could not bring themselves to do it. And within months of her arrival, she and Billy had picked up exactly where the war had interrupted them. By the summer of 1943, at a garden party held with a kind of irony neither of them could have invented, at Buckingham Palace itself, the two were unmistakably a couple again. And this time, both of them understood what it would mean to make it permanent. It was Rose who understood it first and worst. From Massachusetts, she watched her daughter’s letters grow warmer toward a man she had never approved of. And she did exactly what a woman of her faith and generation believed she was obligated to do. She wrote. She pleaded. She invoked repeatedly and without softening the precise theological stakes of what Kick was contemplating, that to marry outside the Roman Catholic Church was to live, in the Church’s own teaching, in a state of mortal sin, that any children of such a marriage would very likely be raised Protestant, lost to the faith before they had ever been baptized into it, that this was not a matter of taste or family preference but of her daughter’s eternal soul. Rose did not regard this as cruelty. She regarded it as the last and most important thing a mother could do for a child she loved. She tried, by her own later account, to delay the relationship by any means available to her, discouraging visits, withholding her blessing, hoping that time and distance and the ordinary chaos of a world war would do what her letters could not. When she finally understood, by the spring of 1944, that none of it was working, the strain of it was severe enough that those close to the family would later describe her as nearly hospitalized by the distress, a mother undone not by a tragedy that had happened to her daughter but by a choice her daughter was about to make freely, with her eyes open, against everything Rose had spent 24 years trying to instill in her. Joseph Kennedy’s calculation, when he allowed himself to make one, was less theological and more political, though it arrived at nearly the same place. He understood, as a man who had spent a career reading rooms, exactly what a marriage between his Catholic daughter and a prominent Protestant lord would look like to the Irish Catholic voters of Boston who had built his father-in-law’s career and would, before long, be asked to build his son’s. A scandal like this was not abstract to him. It was a liability with a shape and a voting district. And yet, and this is the detail that the family’s later silence would try hardest to erase, when his daughter made clear that she intended to marry Billy Hartington with or without her parents’ blessing, Joseph Kennedy did not forbid it outright the way Rose, in her anguish, might have wished him to. He simply declined to stand in the doorway. So the wedding went forward on the 6th of May, 1944, at the Caxton Hall Register Office, a civil ceremony, not a church wedding, since no Catholic priest could perform a marriage the church did not recognize, and Billy’s own family, for all their eventual warmth toward Kick, were hardly going to insist on a Catholic mass for their future duchess. The guest list told the entire story without needing a single word of narration. Billy’s family came in force, his parents, the Duke and Duchess of Devonshire, his siblings, his wide circle of English friends, and the Red Cross colleagues Kick had made her own community in London. From the Kennedy side of the register office, there was exactly one face, Joseph Jr. , the eldest of the nine children, a lieutenant in the United States Navy who had arranged his own leave specifically so that one Kennedy at least could stand beside his sister. He would send a telegram to his parents afterward, a single line that has survived precisely because of how much restraint it managed to compress into so few words, that “the power of silence,” he wrote, “is huge.” He did not elaborate on whose silence he meant, or why it was so powerful. He did not need to. Everyone reading it understood that he was describing his mother, 3,000 miles away, refusing even to acknowledge by telegram that her daughter had married. Here is where the story’s first reframe belongs, the kind of overturned assumption that the rest of it will keep returning to. It would be easy, looking only at the empty pews and the absent mother, to assume that the power in this story belonged to Rose, that her disapproval was the dominant fact of the wedding, the thing everyone in that register office was really thinking about. But the power, in the end, did not belong to the woman who refused to come. It belonged to the woman who got married anyway. Kick had grown up inside a family that prized winning above almost every other virtue, and on the 6th of May, 1944, she won the only contest that had ever actually mattered to her, the right to choose her own life, even at the cost of the one relationship, her mother’s unconditional presence, that she had never previously had to live without. What she could not have known, standing in that register office in her suit and her small bouquet, was how little time she and Billy had actually been given to enjoy what she had won. They had perhaps five weeks together as husband and wife before Billy, already serving with the Coldstream Guards, was called up for active duty on the 13th of June, deployed first into the fighting that followed the Normandy landings and then onward into the brutal push through France toward Belgium. London in those same weeks had become a city under a new and specific kind of terror, as Germany answered the success of the D-Day landings with pilotless flying bombs, the V1s, which Londoners nicknamed “doodlebugs” for the particular rattling drone of their engines. Kick wrote in her diary about the strange psychology those weapons created in a city that had already endured years of conventional bombing, that people listened first for the engine to arrive and then far more anxiously for the engine to cut out, because it was in the silence after the engine stopped, a silence that lasted some 12 agonizing seconds, that the bomb was actually falling and there was nothing left to do but wait to learn where it would land. It is hard not to notice, looking back, how much of Kick’s life in 1944 was organized around exactly that kind of waiting, for letters, for leave, for the silence that follows an engine to resolve itself into either relief or catastrophe. In early August, in her first public appearance as Lady Hartington, Kick spoke at the Bakewell Fair near Chatsworth, charming the very Derbyshire electorate that had in fact narrowly rejected Billy’s own attempt at re-election to Parliament that same summer, an outcome that stung the family more than they let show, given how much of their identity was tied to public service. Her ease with the crowd impressed both the Duke and his political agent, who wrote afterward, with evident relief, about how useful this American girl might prove to the family’s political future once the war had ended. It is worth pausing on that sentence because it captures something true about what Kick had actually become in England by the summer of 1944, not merely a bride tolerated by her husband’s family but an asset they were already planning around, a woman whose charm they had begun quietly to put to use. Then, within the span of four weeks, two of the men closest to her were killed. On the 12th of August, 1944, Joseph Kennedy Jr. , the brother who had stood beside her at her wedding, the brother who had told their parents that silence carried huge power, was killed when the aircraft he was piloting exploded over the English Channel. He had completed the 25 missions that would ordinarily have sent him home and had volunteered instead for a secret, extraordinarily dangerous operation intended to destroy the launch sites from which those doodlebugs were being fired into England, a mission, in other words, born directly out of the same terror that had haunted Kick’s own diary that summer. Kick learned of her brother’s death while staying with her family in Hyannis Port, having crossed the Atlantic to be near them while she waited for Billy to return from the front. She would later be remembered by those who knew the family’s particular code of stoicism for grieving the way every Kennedy was trained to grieve, without visible collapse, without the public unraveling that another family might have permitted itself. The family’s own rule, as one of her relatives would later put it, was simple and absolute, “Kennedys don’t cry.” Not where anyone could see. She had barely begun to absorb that loss when Billy himself wrote to her from Brussels, which his unit had helped liberate on the 3rd of September, in a letter that allowed himself, for once, an unguarded line that he had a permanent lump in his throat and that he longed for her to be there to share an experience that so few people would ever have the chance to share. It is the kind of letter that reads, in hindsight, like a man allowing himself a single moment of hope before the war took it back. The Allied momentum that had carried his unit through Belgium dissolved within days into fierce German resistance. On the 10th of September, 1944, by some accounts the 9th, fighting in Belgium against an entrenched German position, William Cavendish, Marquess of Hartington, was killed by a sniper’s bullet through the chest. He had been married for a little over four months. He and Kick had spent, in total, perhaps five weeks of that marriage actually together. He left no children, and so the dukedom that had once been his inheritance would eventually pass instead to his younger brother, Andrew, a quiet, almost bureaucratic consequence of a young man’s death that nonetheless rewrote the entire future of one of England’s oldest titles. Kick was 24 years old, a widow, and a marchioness with no marquis, in a country far removed in temperament from the one she had been born into, and the one person who might ordinarily have crossed an ocean to comfort her, her own mother, had not come to her wedding five months earlier and would offer now only the same distant, dutiful correspondence she had offered all along. With his family’s blessing, Billy was buried close to where he fell in Belgium, rather than brought home to Chatsworth, a decision that meant Kick’s husband and the burial ground that would, four years later, become her own were never in the same country at all. What followed was not collapse, though anyone would have forgiven her one. Kick returned briefly to the Red Cross, taking up volunteer work at the Charles Street Club that autumn, and then crossed the Atlantic once more to spend time with her grieving family, perhaps more clearly than anything else in her life, exactly who she had become. She went back to London, not for a visit, to live there permanently. It is worth sitting with how unusual that choice was. She was an American widow with no living husband to anchor her to England, no children to raise within the Cavendish family, no obligation whatsoever to remain in a country that had taken both her husband and, in its own way, her brother. Her family was in Massachusetts. Her mother’s disapproval, still unresolved, was in Massachusetts. Everything a young widow might reasonably have been expected to return to was on the other side of the ocean. And yet London, not Boston, was where Kick chose to rebuild a life. In the city where she had been a debutante, where she had fallen in love twice, where her husband’s family, whatever their early reservations about a Catholic American daughter-in-law, had come by now to genuinely love her. The Devonshires kept her close. She kept a small flat. She resumed the wide, glittering circle of English friendships that had always come easily to her, chaired charitable committees, attended the season’s parties, and became, in the years immediately following the war, one of London’s most sought-after widows. Beautiful, witty, independently wealthy enough through her father’s settlements to live exactly as she pleased, and burdened by a grief that the people around her rarely saw her display. This was the years of endurance phase of her story, the part that does not photograph as dramatically as a wedding or a death but that asked something harder of her than either, the daily, undramatic discipline of building an ordinary life out of an extraordinary loss in a country that was not by blood her own, estranged in subtle but real ways from the family that was. She wrote home faithfully. She visited when she could. But the central fact of her existence in those years was that she had chosen England over Massachusetts, chosen a life built on her own terms over the prescribed road her mother had once hoped she would walk. And she would go on choosing it visibly and repeatedly for the rest of her short life. It was at one of those charitable events in 1946, while chairing the Commandos Benevolent Fund Ball, that she met the man who would complicate her story for a second time. Peter Wentworth Fitzwilliam, the 8th Earl Fitzwilliam, was almost the opposite of Billy in every respect, except the one that mattered most to Rose. He, too, was a Protestant Englishman of enormous inherited wealth, heir to coal fortunes and estates that dwarfed even the Cavendish holdings. Where Billy had been quiet, careful, and faithful in temperament even before marriage made him so in practice, Fitzwilliam was, by every account from the people who knew him, a war hero of genuine and decorated bravery, and in the same breath, a man whose appetite for risk extended well past the battlefield. A celebrated womanizer with a reputation for scandal that preceded him into every room he entered. He was also, critically, already married, and in the slow, contested process of obtaining a divorce. Friends who watched the relationship develop understood exactly what Kick was reaching for in him, even if they worried about what she would actually get. … Read more