Born into the glittering cages of Europe’s most powerful dynasties, these five princesses discovered that royal blood was no shield against tragedy. Forced marriages, devastating illness, the loss of children, and crushing loneliness defined their lives in ways history often overlooks. Their stories reveal the darkest fates that awaited those born to the throne. In nineteenth-century Belgium, Princess Stéphanie of Belgium was born on May 21, 1864, at Laeken Palace near Brussels.

Her father, Prince Leopold, was the heir to King Leopold I, Belgium’s first sovereign. When she was barely eighteen months old, her grandfather died and her father became King Leopold II. Abroad, he was viewed as a powerful statesman who put Belgium on the world map, filling the land with grand palaces and imposing public buildings. Behind this glittering facade, however, lay a far darker legacy.
Today Leopold II is remembered for his brutal rule over the Congo, where millions were enslaved and subjected to unspeakable horrors in rubber plantations. The family’s wealth was partly built on that bloodstained Congo money. Stéphanie’s mother was Maria Henrietta of Austria, a Habsburg, and the marriage was a purely political arrangement. Their two personalities clashed, and the queen drifted away from her husband.
Stéphanie’s early years were marked by tragedy. In January 1869, her brother, the crown prince, died, plunging the family into mourning. Then in 1871, a typhus epidemic swept Brussels. Stéphanie, not yet seven, fell desperately ill.
For weeks she hovered between life and death, but she survived. After her strict education began, her older sister Louise married and left Brussels, and her mother was constantly absent, leaving Stéphanie the highest-ranking woman at the Belgian court. In the winter of 1878, her fate was sealed. Barely a teenager, she was introduced to Crown Prince Rudolf of Austria, the only son of Emperor Franz Joseph and heir to the vast Austro-Hungarian Empire.
Rudolf was twenty; Stéphanie was fourteen. Their meeting was no accident. The Austrians saw her as a suitable bride capable of securing the succession. After lengthy negotiations, the marriage was arranged.
On May 10, 1881, days before her seventeenth birthday, Stéphanie married Rudolf in a lavish ceremony in Vienna. But under the royal glitter, the marriage was far from a fairytale. There was no great love, only duty. Rudolf was volatile, and Stéphanie found herself trapped in the palace under constant surveillance.
Their only child, Elisabeth Marie, was born in September 1883. Instead of joy, Rudolf reacted with disappointment—he had wanted a male heir. By the mid-1880s, Stéphanie was unable to have more children. The cause lay with her husband.
Rudolf was not only an alcoholic but also a reckless womanizer who contracted numerous sexually transmitted diseases. Most historians agree he likely passed syphilis and gonorrhea to Stéphanie, leaving her infertile at just twenty-two. Feeling betrayed and humiliated, she refused to share his bed, and Rudolf sank deeper into despair. Among his many mistresses, Baroness Mary Vetsera stood out.
In 1888, at only seventeen, she became involved with the thirty-year-old crown prince. His behavior became increasingly erratic, possibly due to worsening syphilis. He spent much of his time with Vetsera at Mayerling, a secluded hunting lodge near Vienna he had turned into a private retreat. On January 30, 1889, Stéphanie received shocking news: Rudolf and Mary Vetsera had been found dead at Mayerling.
Initial rumors of conspiracy and assassination spread for years, but the truth was bitter. Rudolf had shot his mistress and then taken his own life. Stéphanie was a widow at twenty-four, unable to bear more children. She wished to return to Belgium, but the imperial court refused to let her daughter, a Habsburg princess, leave Vienna.
Stéphanie remained trapped in a city where she was unwanted. During this trying time, she found comfort in a relationship with Count Artur Potocki, a Polish nobleman, but he died of tongue cancer in March 1890. To escape her grief, she traveled extensively. Her father, King Leopold II, who was still capable of remarrying, wanted her to marry the new heir to the Austro-Hungarian throne, Archduke Franz Ferdinand, but that marriage never happened.
Instead, in the late 1890s, she found love with Count Elmer Lonyay, a Hungarian aristocrat. This was a marriage based on affection, not political alliance. Leopold refused his consent in a harsh letter, forbidding his daughter from marrying beneath her station. Defying her father, Stéphanie married Elmer on March 22, 1900, in Miramare Castle near Trieste, losing her imperial titles in the process.
Her father was furious with his daughters for marrying men of lesser rank and all but disowned them. He even banned Stéphanie from attending her mother’s funeral in 1902 and refused to see her before his death in 1909. When Leopold died, his daughters expected to inherit part of his enormous fortune. Instead, they discovered he had left most of it to Caroline Lacroix, his much younger mistress, whom he had secretly married just five days before his death.
A bitter legal battle lasted five years, with Stéphanie eventually securing a settlement of five million francs. In the summer of 1914, Archduke Franz Ferdinand—the man her father had wanted her to marry—was assassinated in Sarajevo, igniting the chain of events that led to World War I. Weeks later, Germany invaded neutral Belgium, which remained occupied for four years. Since Austria-Hungary was allied with Germany, Stéphanie found herself in an agonizing position, living in an empire that was helping to occupy her homeland.
She was convinced that Emperor Franz Joseph was somehow involved in the assassination of his own heir. Fortunately, she and Elmer lived far from Vienna, having settled in 1906 at Schloss Rusovce in what is now Slovakia. There, Stéphanie devoted herself to charity, finding meaning in a world falling apart. After the war, the Austro-Hungarian Empire dissolved.
Stéphanie and Elmer survived, living peacefully at their estate. Her relationship with her daughter, however, had deteriorated. Elisabeth Marie, known as the Red Archduchess for her socialist views, was estranged from her mother after a bitter quarrel in 1924. Stéphanie wrote her memoirs, published in 1935, then in English in 1937 under the title I Am to Be an Empress.
It was not a complete autobiography, ending effectively in 1889 with the Mayerling tragedy. In September 1939, World War II broke out. As the Soviet Red Army advanced in Central Europe, Stéphanie and Elmer feared Nazi plans to turn their castle into a field hospital. They fled to Pannonhalma Archabbey, where Stéphanie died on August 23, 1945, at the age of eighty-one.
She had disinherited her daughter the previous year, and Elisabeth Marie did not attend the funeral. We now shift to seventeenth-century Spain, where a young princess was forced to marry her uncle. Infanta Margaret Theresa was born July 12, 1651, in Madrid’s Royal Alcázar. Her father was King Philip IV, ruler of Spain since 1621 and master of an empire that spanned the world.
Her mother, Mariana of Austria, was the daughter of the Holy Roman Emperor. Both parents were Habsburgs, and their union was shockingly close—Philip was Mariana’s uncle. This inbreeding came at a heavy cost. Of their five children, three died in infancy.
Only Margaret and her younger brother Charles survived. Charles, known as Charles the Bewitched, was a living testament to the ravages of inbreeding—prematurely aged, bald in his twenties, with a deformed jaw and signs of early dementia. Margaret, however, was healthier and adored by her parents. They commissioned Diego Velázquez to paint her, resulting in one of the most famous paintings in history, Las Meninas.
Velázquez painted at least five portraits of the young princess, cementing her as a symbol of royal power. Yet by the time she was five, discussions about her future marriage were already underway in the Spanish court. Powerful marriages were about alliances, not love. A proposal with Charles II of England fell through mainly due to her father’s opposition; he wanted Margaret to marry within the Austrian branch of the Habsburgs.
At just eleven years old, she was betrothed to her uncle, Leopold I, the Holy Roman Emperor. She was considered too young to marry, and the wedding did not take place until April 1666, when Margaret was nearly fifteen. The journey from Madrid to Vienna took months, and the lavish ceremony was held December 12, 1666. Life in Vienna was strange for Margaret.
She called her new husband uncle, though they got along well, sharing interests in art and music. But she was desperately homesick, refusing to improve her German. As time passed, her delicate beauty faded, and her health suffered. She became pregnant immediately, giving birth to a son in September 1667 who died after three and a half months.
Of her six pregnancies in just six years, only one child survived infancy: Maria Antonia. The pattern was tragic. Margaret endured repeated difficult pregnancies, which left her weakened and depressed. Even when not pregnant, she was often bedridden, diagnosed with goiter, for which there was no treatment in the seventeenth century.
Her condition worsened severely in the spring of 1673. After three weeks of stomach pain, she developed a fever. By early March, she struggled to breathe, and she died on March 12, 1673, at just twenty-one. An autopsy revealed she had been pregnant with another male child at her death.
Widowed, Leopold mourned her, but remarried by the end of the year. Margaret’s claim to the Spanish throne eventually passed through her surviving daughter, and through that line, the Habsburg succession crisis would ultimately plunge Europe into a fifteen-year war. We now turn to another Spanish princess. Maria Theresa of Spain, born September 10, 1638, was the daughter of King Philip IV and Elisabeth of France.
Most of her siblings died young, and after her mother and brother’s deaths, she became the heir to the Spanish throne. Her father, recognizing her importance, married again in 1649, and his new son Charles eventually replaced Maria Theresa as heir. To understand Maria Theresa’s fate, one must understand the fierce rivalry between Spain and France. The two powers had been locked in conflict since 1494, fighting for dominance over Italy and Europe.
After 165 years of near-constant war, a peace was finally arranged. On November 7, 1659, the Treaty of the Pyrenees was agreed, and as part of the terms, Philip IV consented to marry his daughter to King Louis XIV of France. They met on the island of Pheasants in June 1660. When Louis first saw his bride, he noted a small, plump woman with fair skin and blond hair, meeting the era’s standards of beauty.
Notably, she had not inherited the prominent Habsburg jaw, thanks to her mother. In a poignant farewell, her father told her, you must forget you were an infant, and remember only that you are Queen of France. They married on June 9, 1660. Maria Theresa, quite unusually, had married her second cousin.
The families were deeply interwoven through generations of Habsburg intermarriage. She bore Louis six children, but only their firstborn son, the Grand Dauphin, survived to adulthood. Two daughters died just six weeks after birth, and two other sons died in infancy. The hereditary weaknesses from cousin marriage likely contributed to these staggering losses.
As queen consort, Maria Theresa was described as kind, superstitious, and devoted to her husband. Yet her patience was tested daily. Louis was a notorious womanizer with many mistresses, and Maria Theresa often wept in secret but never confronted him publicly. She found a true ally in her mother-in-law, Anne of Austria, who shared her Spanish heritage and faith.
Anne’s death in 1666 was a devastating loss. Her role as queen consort included mediating between France and Spain. In May 1667, Louis declared war on her homeland to reclaim territories in the Spanish Netherlands. The ensuing War of Devolution was brief but led to Spanish concessions, and Maria Theresa’s ability to moderate her husband’s demands may have softened the terms.
She never reached old age. In July 1683, she developed a severe abscess under her arm, followed by fever. Her doctors chose the standard remedy of bloodletting, possibly cutting a major vein or artery. She died on July 30, 1683, at forty-four.
Her last words were, since I became queen, I have never had more than one happy day. Louis soon secretly married one of his long-time mistresses, but the Grand Dauphin remained the sole legitimate heir. When the Spanish branch of the Habsburgs died out in 1700, Maria Theresa’s grandson, Philip of Anjou, ascended the Spanish throne as Philip V. Thus, her marriage in 1660, initially intended to secure peace, eventually placed a French prince on the Spanish throne.
Our fourth story returns to the mid-sixteenth century. Anna of Austria, born November 2, 1549, in Spain, was the daughter of the future Holy Roman Emperor Maximilian II and Maria of Spain, the daughter of Emperor Charles V. Though born in Spain, she was raised in Vienna after her parents returned there. Anna was originally intended to marry her cousin, Don Carlos, the unstable son of King Philip II of Spain.
But after Don Carlos’ death in suspicious circumstances in July 1568, and the subsequent death of Philip’s third wife, the Spanish king found himself without a male heir. In a shocking move, Philip proposed marrying his niece. Anna, at twenty, married her forty-three-year-old uncle by proxy in May 1570, defying even the pope’s objections. Anna adapted well to life in Spain, bringing life to the formal Spanish court.
She became Philip’s most beloved wife, and there are no records of him taking mistresses during their marriage. She bore him five children, but only one son, Philip, survived to adulthood. The others died in infancy, echoing the tragic Habsburg pattern. Anna died of influenza in October 1580, just days before her thirty-first birthday, while traveling to Portugal to claim the Portuguese throne.
Philip never remarried. We now move to Austria in the early sixteenth century. Elisabeth of Austria was born July 9, 1526, the eldest daughter of Ferdinand I and Anna of Bohemia and Hungary. As a child, she was plagued by seizures, which today are recognized as epilepsy.
In the sixteenth century, this mysterious condition was often misunderstood, sometimes seen as a curse or divine connection. When Elisabeth traveled to Poland as a young bride, her condition worsened, and dark rumors spread that she was being poisoned by her scheming mother-in-law, or possessed by the devil. The truth was far more tragic: her own body was betraying her. Elisabeth’s fate was tied to a battle that took place just weeks after her birth.
In August 1526, at the Battle of Mohács, the Ottoman Empire crushed the Hungarian forces, and King Louis II of Hungary, Bohemia, and Croatia was killed. He left no heir. Elisabeth’s father, Ferdinand, claimed the crowns through his wife, Anna, who was the dead king’s sister. Another claimant, John Zápolya of Transylvania, was backed by Poland to counter Habsburg ambitions.
To secure his claim and neutralize Poland, a marriage alliance was proposed: Elisabeth would marry King Sigismund II Augustus of Poland. The treaty was signed in 1530 when Elisabeth was only four, and the wedding was postponed until she came of age in 1543. At sixteen, she arrived in Kraków and married the twenty-two-year-old king. Celebrations lasted two weeks.
But the marriage was a nightmare. Sigismund’s mother, Bona Sforza, fiercely opposed the Habsburg match and made her daughter-in-law’s life miserable. The king himself showed little affection, openly keeping mistresses. Isolated and ill, Elisabeth’s seizures became more frequent.
By the early summer of 1545, she was in crisis. Her parents sent physicians, but it was too late. On June 15, 1545, in Vilnius, she died at eighteen, just weeks before her nineteenth birthday. Although Sigismund went on to marry twice more, his marriages produced no heirs.
When he died in 1572, all the careful diplomatic efforts to secure the Polish crown for the Habsburgs came to nothing.