As a daughter of King George III and Queen Charlotte, Princess Sophia should have had the world at her feet. Instead, she lived in near lifelong isolation, haunted by a family plagued with illness, fear, and scandal—including a rumored secret love child whose identity could have threatened the monarchy. Born November 3, 1777, Sophia was the fifth daughter and 12th of 15 children of the royal couple. The king was especially delighted to have another girl, as he always preferred his daughters to his sons.

Described as delightful though moody, with a passionate nature and sympathy for the less fortunate, she once donated her allowance to buy bread for starving prisoners after her father read her a news article about their poor conditions. In 1788, Sophia witnessed a nightmare. Her father suffered the first of several mental breakdowns that changed her family forever. Likely suffering from an attack of the blood disease porphyria or bipolar disorder, the king began rambling for hours, sometimes foaming at the mouth.
The distraught queen grew terrified of her husband and kept her daughters close, moving Sophia and her sisters into her bedroom where she insisted they sleep with her every night. Soon Sophia’s mother and eldest brother, George IV, then the Prince of Wales, began fighting over who would become regent if the government declared the king unfit to rule. Charlotte even accused her son of conspiring with doctors to deem the king permanently insane and frequently denied him access to their father in retaliation. Even after the king’s condition improved the following year, the queen sank into such a depression that she was no longer benevolently maternal.
She became so suspicious and quick to anger that Sophia began to fear her and learned to tiptoe around her dark moods. In 1792, at age 14, Sophia made her debut at court, but eligible suitors were hard to spot due to her biggest insecurity: she hated how she looked in her glasses. Nearsighted, she refused to wear spectacles in public because she feared the papers would mention them. In the summer of 1793, Sophia began having trouble swallowing, with anywhere between 50 and 80 convulsions and fainting spells daily.
People worried she had inherited her father’s illness and would soon face a mental decline. Sophia never developed mental health issues, but her childhood did not improve. With her father seemingly teetering on insanity, her mother kept Sophia and her other young daughters on the tightest leash imaginable—almost never allowed out of the palace, meeting precious few new people. Sophia once said her days were so deadly dull that she wished herself a kangaroo.
A royal decree meant none of the king’s daughters could marry without his consent, which he was not prepared to give. As a result, Sophia mostly had only court pages or equerries to flirt with. In 1797, she got a glimpse of the outside world when her big sister Charlotte married Frederick, hereditary prince of Württemberg. He was overweight, had an illegitimate child, and his earlier wife had died under strange circumstances, but as the saying goes, beggars can’t be choosers.
Charlotte’s marriage did nothing to open the door for Sophia and her other sisters—it only left them more starved for male attention. Sophia and her brother, the future George IV, stayed close throughout her life. As one of the only people able to defy their mother, Sophia and her sisters constantly begged him to break them out of their convent-like lifestyle and help them find husbands. For now, though, there was little George could do, though he promised he would try when he came into power.
George IV’s marriage to Caroline of Brunswick was unhappy for both parties, but even after the union all but crashed and burned, Sophia stayed friends with Caroline and moved in her circles. Sophia was friends with one of Caroline’s ladies-in-waiting, Frances Garth. By 1798, the young princess had a crush on Frances’s uncle, Thomas Garth, who happened to also be her father’s equerry. Soon Sophia and Thomas were a secret item, with Frances acting as their go-between.
Garth was 33 years Sophia’s senior, but the love-starved girl looked right past that. Most, though not all, historians agree that Sophia became pregnant with Garth’s child. Her mother, Queen Charlotte, likely found out and, after a probable bout of fury, knew her one job was to keep the truth from the frail King George III at all costs. Her idea was farcical, and it worked.
For the next month, Sophia’s condition was an open secret to many in the palace—except the reigning monarch. They told the king Sophia had a bad case of dropsy, which explained any bloating, and sent her away to recover. According to some evidence, Sophia gave birth to a child named Thomas in August 1800, and his biological father ended up raising him away from the prying eyes of the royal court. Historians suggest Sophia and Garth might have made a secret trip to the altar, pointing to a portrait of Sophia wearing a wedding ring as proof, but Garth’s insufficient rank meant a real royal union could never take place.
Around this same time, Sophia’s father suffered further lapses into mania. He would often not recognize his own children, howl like a monkey, and walk around making inappropriate remarks. During these fits, King George made wildly inappropriate advances toward Sophia, which she seemed to partly blame on her mother’s coldness toward him in the bedroom. She could only describe his behavior delicately as “an overkindness, which greatly alarms me.
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King George’s girls were now full-blown adults, but few led adult lives. This was especially true of Sophia’s youngest sister, Amelia, their father’s favorite, until tragedy struck. Like Sophia, Amelia had always been sickly, and in 1810, when she was just 27, she died after a prolonged illness. Amelia’s death was the straw that broke King George’s mind completely.
Her nurse described how, in the wake of her death, George exhibited scenes of distress and crying every day and was consumed with a melancholy beyond description. Sophia watched from the sidelines as her father slipped beyond her reach. In 1811, with King George III incapable of ruling, Sophia’s brother George IV officially became Prince Regent. One of his first acts was increasing his sisters’ annual allowances so they could have some independence.
Yet this was a double-edged sword. Queen Charlotte was enraged that her son was undoing decades of her work keeping her daughters away from the world, and she fought furiously with him and with her daughters to prevent them from breaking free. Sophia’s brother made good on his promises as best he could. One of her older sisters, Mary, wed a duke at the ripe age of 40 just to get out of the palace, while another, Augusta, secured the regent’s permission to privately marry a longtime lover.
But Sophia, even as the youngest of her sisters now that Amelia was gone, remained without a husband. However, as she neared her mid-30s, she developed a new and scandalous crush. The royal doctor Henry Halford was so attentive and solicitous that the princess, still as starved for affection as ever, fell in love with the married man. It was a lonely existence, and it was about to get lonelier.
Sophia had always been close with Caroline of Brunswick and equally close with their daughter, her niece, Charlotte. So in 1817, when Caroline died in childbirth, the blow was crippling. Just a year later, in 1818, Sophia lost the driving force of her life, her mother, Queen Charlotte. The queen had controlled and cajoled Sophia and her sisters since birth, and existence without her was unthinkable too.
Sophia’s father, King George III, had been blind, insane, and cooped up inside Windsor Castle for nearly a decade, yet he survived many of his family members. In 1820, he died after spending Christmas babbling for 58 hours straight. Sophia settled into her royal old-maid role with alarming comfort. Her brother George IV was king for a decade until 1830 and made sure she lived in comfort.
When he died, her other brother William took over, and the family continued to dote on their baby sister. Around the time of William’s reign, Sophia lived beside her niece, the future Queen Victoria, and the girl’s mother, the Duchess of Kent. The duchess was under the sway of her comptroller, a cunning and exacting man named Sir John Conroy, and Sophia soon fell under his sway too. Conroy was influential, but little Victoria detested him—he and her mother had devised an incredibly strict upbringing for the young girl, and Conroy could be as sleazy and sycophantic as they come.
Sophia, unsurprisingly, had bad taste in men. Then again, she may have had a good reason to team up with Conroy. In 1828, Sophia’s past came back to haunt her. Her alleged love child, Tommy Garth, came out of the woodwork with reportedly incriminating documents of his parents’ relationship.
More than that, he threatened to expose Sophia’s youthful indiscretions unless the royal family paid him a massive sum of money. According to some, it was none other than John Conroy who swooped in to shut down Tommy’s machinations. Either way, the young man eventually gave up his blackmail scheme. Whatever the case, Conroy so impressed Sophia that she soon let him control her finances—a terrible idea.
Thanks to Sophia, Conroy lived a lavish lifestyle, squandering her money mostly on himself. But that was not even the worst part. People described how by this time the princess had become dizzy, easily muddled, and was a confused, nearly blind aunt. Because Conroy knew the powerful Princess Victoria hated him, he got Sophia to spy on the girl whenever he was out of town and report back to him.
Victoria was not pleased when she learned of this and kept Sophia at arm’s length forever after. Another speculation about Sophia’s rumored love child is that Thomas Garth was not the father. Instead, some say the baby’s father was actually her brother Ernest, the Duke of Cumberland. Ernest had an infamously vulgar and aggressive appetite for women, and as a soldier, once even wanted to raid a convent.
Everyone in the palace knew of Ernest’s rough ways, but Sophia herself made the darkest confession of all. In her letters to Thomas Garth, she complained about her brother’s advances toward her. On the morning of May 27, 1848, Sophia became gravely ill, and the 70-year-old princess was dead by 6:30 in the evening. Her niece, now Queen Victoria, had been presiding over her own birthday reception when Sophia died.
For a woman who had spent her life in the shadow of others, Sophia got to steal someone else’s thunder just once.