The boy’s ceremony was carried to his baptism in the arms of Countess Maria Antonia della Perusa, a Bavarian widow who had her own reason to remember Vienna. Her husband, a Bavarian officer, had died of dysentery outside the city during the campaign that broke the Ottoman siege nine years earlier. Now she was watching over the electress through the last months of her pregnancy, and on the morning of the 28th of October, 1692, she held the newborn prince in her arms as he was baptized in the Hofburg. Within hours of his birth, the King of Spain had been made by proxy godfather to the child that Madrid’s government already regarded as a future heir to his crown.

The boy was named Joseph Ferdinand Leopold Anton Francis Cajetan Simon Thaddeus and Ignatius, a list of names drawn from both families and from the saints whose feast day it was. The Bavarian estates, gathered in Vienna to witness the birth, commissioned a medal in his honor. On one side the baby prince stood on a pedestal wrapped in a lion skin, wearing a prince’s hat, with the coats of arms of Bavaria and Habsburg leaning against his feet. In one tiny hand he held a scepter, in the other the orb that stood for worldly rule.

On the reverse, the orb rested on top of the globe under the words *Deo auspice*, under God’s protection. For a few days, everything looked right. The child she had fought to bear in her own father’s house had arrived safely, and this time she had produced what her first two deliveries had not, a son who lived. Then Maria Antonia fell ill.

A few days after the birth, she developed a fever. She complained of headaches and of pains in her abdomen. She became melancholic, the period word for a deep, persistent low mood, and she began to doubt that she would get better. None of the doctors treating her could help, the Munich physician included.

Her biographer described the same weeks from another angle: after the birth, she recovered only with great difficulty and then fell into melancholy. She never regained her strength. October turned into November and November into December. Through all of it, her son was healthy, feeding from a wet nurse, watched over by the countess.

The Bavarian delegates who had come to witness a birth now found themselves watching a death unfold. We don’t know exactly what she was told or what she asked for in most of those weeks. But we do know she was not passive at the end of her life. She left a last will.

And in it, she did something that ran directly against the marriage contract her father had signed for her seven years earlier. Maria Antonia, Electress of Bavaria, Archduchess of Austria, died in the Hofburg in Vienna on the 24th of December, 1692, Christmas Eve. The inscription later engraved on her coffin records the hour as half past five. It doesn’t say whether in the morning or the evening.

She was 23 years old. Her son was eight weeks old. The archivist’s phrase for how she died is the old one: in childbed. She died in the same palace where her mother had died.

The two deaths were 19 years apart. Margarita had been 21. Maria Antonia was 23. Her husband was in Brussels governing the Spanish Netherlands and fighting the French.

The sources record no word of his reaction to her death. What they do record, very clearly, is what he did next. The eighth article of her marriage contract had been clear: if Maria Antonia died, her children would stay in her husband’s care and her estate would stay with him. That was the arrangement her father and her husband had signed in 1685.

Her last will did the opposite. She disinherited Max Emanuel. Her private property was to go to her baby son. If the boy died, it was to pass to the emperor, her father, and his family.

Only a few keepsakes were to remain permanently with the House of Bavaria. Everything else, the husband was to lose. Her biographer reads it in one sentence: “Even in the face of death, she did not forgive her husband. ” That is an interpretation, not a quotation from her, but it is hard to read the will any other way.

After seven years of what that same biographer called unbearable treatment, the only document in this story that seems to carry her own decision cuts him out. There was a second clause, and it was more complicated. In the same will, she renounced the Spanish monarchy once again for herself and for her heirs. Think about who that helped.

Not her husband, whose whole strategy depended on her claim. Not obviously her son, who would inherit through her. On its face, it helped her father, who wanted Spain for his sons by his third wife. She was dying in Leopold’s palace, under his roof, surrounded by his court.

Whether this was her own conviction, her father’s influence, or simple loyalty to the family she had come home to, the sources don’t say. What can be said is that her last will cut out the husband who had humiliated her and confirmed the plan of the father who had pressed her to sign it away in the first place. As would become clear, Madrid would have something to say about that renunciation too. The will contained one more wish, and this one is quoted directly.

A contemporary record says that she wished to be laid beside her lady mother in the Capuchin Church in Vienna. So she was. Maria Antonia was buried in the Imperial Crypt next to Margarita. Her coffin was made by a craftsman named Thomas Koch from Munich out of lead alloy.

Its lid is oddly high and sloped. A crucifix runs the entire length of it with a skull and crossed bones beneath. It is covered in Latin inscriptions, and the crypt has published them. Read them and you notice what they choose to say about her.

The main inscription lists her titles and her death in Vienna in 1692, and then calls her a princess most illustrious by birth, by marriage, by childbirth, and by death: *ortu, coniugio, partu, morti*. One side panel records her wedding to Max Emanuel, adding that by then he had often defeated the Turks gloriously. The other records, in its words, a most happy birth, the son she bore to the hope of the fatherland and of the house of Bavaria. At the head runs the final image: she met death, it says, with the same Austrian piety with which she had lived, two months after giving birth, like the dawn which brings forth the sun for the world and then is extinguished.

It is a genuinely beautiful line. It is also, if you sit with it, a precise description of what she was used for: birth, marriage, childbirth, death. The dawn exists to deliver the sun. So what actually killed her?

The record gives us this: fever beginning a few days after a quick and easy delivery, headaches, abdominal pain, a deepening low mood, and death about eight weeks later. The Bavarian archivists say she died in childbed fever. An abdominal pain in the days after giving birth fits the pattern that doctors later called childbed fever, usually an infection of the womb after delivery. Before antibiotics, it killed enormous numbers of new mothers in palaces as well as cottages.

That is a reasonable possibility. It is not a diagnosis. These symptoms can come from other causes too, and nobody examined her in a way that could settle the question. The melancholy is just as tricky.

Some modern writers suggest postpartum depression. Maybe. But a young woman with weeks of fever, who has buried two babies and senses she is dying, does not need a psychiatric label to explain despair. The honest answer is that we have a period word and no way to look behind it.

Some further claims circulate online, stated confidently, that a particular bacterium killed her and that her inbred genes made the infection worse. No solid source supports either part. Treat it as speculation. Which brings us back to the question: was she bred to death?

In the genetic sense, she was certainly bred. Her coefficient was the highest in the dynasty, a real calculation from a real family tree. But the study behind it looked at whether children survived, not whether mothers did, and it cannot tell us why one woman died at 23. Nobody can honestly say that her pedigree killed her.

In the other sense, the case is stronger and simpler. Her mother was married at 15 and died at 21 in her seventh pregnancy. Maria Antonia was married at 16 and died at 23, weeks after her third delivery in about three and a half years. Two women in the same palace, 19 years apart, used up producing heirs for the same family.

And the heir she died producing was still alive, eight weeks old, in a palace his father now considered dangerous. Max Emanuel did not come to Vienna. But from Brussels he gave an order: his son was to be brought to Munich. After Maria Antonia’s death, he feared for the baby’s safety at the Imperial Court for dynastic reasons.

Leopold wanted Spain for his own son Charles. A Bavarian grandson with a better Spanish claim might look to the emperor less like family and more like competition. Max Emanuel wanted the boy out of Leopold’s reach. So moving a baby barely six months old was planned like a military operation.

A memorandum of the 20th of March, 1693, weighed four ways of moving him: by boat up the Danube and the Inn, by coach, by carried chair, or in a litter slung between mules. The river was rejected because, as the memo put it, the water at that time of year was still cold and damp and might harm the electoral prince’s health. Coaches might overturn. Porters might stumble.

Mule litters won. Inside, the baby was held in someone’s arms the whole way. Three physicians traveled with him. Max Emanuel personally insisted that one of them, Dr.

Karl Ferdinand Vaccari, trained in Padua and trusted from the Turkish wars, be placed in charge of the boy’s health. Countess della Perusa carried a traveling pharmacy prepared specifically for him. They left Vienna on the 7th of May, 1693, and reached Munich on the 7th of June. At the Bavarian border, a delegation of the estates was waiting.

At the shrine of Altötting, the baby was carried into the holy chapel, and his uncle Joseph Clemens, Max Emanuel’s younger brother and Elector of Cologne, traveled there just to see him. His father did not come. And by then, his father was already thinking about a new wife. By January 1693, within weeks of Maria Antonia’s death, plans were taking shape for Max Emanuel to marry Teresa Kunigunda Sobieska, the daughter of the Polish king Jan Sobieski, who had led the relief of Vienna in 1683.

The marriage took place by proxy in Warsaw in 1694. So the boy grew up in Munich without either parent. Because his father lived in Brussels, every post carried a report on the boy, and his childhood is unusually well documented. He had a suite of three rooms in the Munich Palace.

The countess raised him. She took on the role of the main woman in his life. The letters give us glimpses of a real small child. In March 1693, still in Vienna, he was already having trouble with his teeth, and the countess had masses said to Saint Apollonia, the patron saint of toothache.

He took his first steps at 15 months. Before he turned two, he was scribbling with pen and ink, and one sheet of his scribbles was saved and sent to Brussels as the electoral prince’s first letter to his father. There is a report from the feast of Saint Nicholas in December 1695. The three-year-old walked up to the saint, kissed his hand, recited the Our Father and the Hail Mary, and was praised and scolded in turn.

The scolding for being restless and willful at mass. Then came the presents. Some of them, the report notes, came from his mother’s estate. What delighted him most were drums, tournament heads, and toy lances.

Among his treasures was a rattle. It was gilded and set with diamonds, with little bells, a whistle built into the handle, and a badger’s claw on a chain to ward off harm. Leopold gave it to him at his birth, and it had probably been made for the birth of his mother back in 1669. Her rattle had become his.

His father wrote to him too. In November 1697, the five-year-old sent a written request, an adult guiding his hand, asking for a pardon for a company of guards. Max Emanuel granted it. His reply opened, “Mein Herz liebster Sohn,” my dearly beloved son, and came with fatherly instructions: “Fear God, obey, study hard, and tame your temper.

”

Meanwhile, Madrid was choosing a king. At the Spanish court, the boy’s great-grandmother, the old queen mother Mariana, became his most powerful champion. She considered Margarita’s line, and so this child, the rightful one. In 1696, mere months after Mariana’s death, Charles II fell seriously ill and signed a will naming Joseph Ferdinand his universal heir.

Then, in January 1698, the boy fell dangerously ill in Munich. His doctors briefly feared it was smallpox. He recovered, but the scare poisoned his father’s relations with Vienna. Max Emanuel became deeply suspicious and believed the emperor’s people wanted the child dead.

He resolved to bring his son to Brussels. In May 1698, at Turnhout, Max Emanuel met his son for the first time. He was five and a half. At the father’s own request, they met alone.

That autumn, the great powers decided they could live with him. On the 24th of September, 1698, France, England, and the Dutch Republic secretly agreed that Joseph Ferdinand should receive Spain itself, the Netherlands, and most of the empire overseas. And on the 11th of November, 1698, Charles II signed a new will. It named his heir as the electoral prince, the only son of the archduchess Maria Antonia, his niece.

The scribes even got the boy’s name slightly wrong, calling him Joseph Maximilian, but one phrase was unmistakable. He was to be king, the will declared, notwithstanding any renunciations made to the contrary, since they lacked just reasons and proper solemnities. The renunciation she had signed at 16 under her father’s pressure, and repeated in her will, had just been brushed aside by the one man whose crown it concerned. Her son was now Prince of Asturias, heir to the entire Spanish empire.

In Brussels, at first, he thrived. Dr. Vaccari noted that for six weeks the electoral prince had seemed better than ever before. Then, in the second half of January 1699, something changed.

For about two weeks, the doctor wrote, the boy’s spirit was not as cheerful and lively as usual. His sleep was uneven, and his face showed a certain weariness. Everyone assumed new teeth were coming. Then, from the night of the 24th of January, he was clearly ill: slightly feverish, restless, talking in his sleep.

He began to vomit, and he kept vomiting. He fought the purges and enemas his doctors prescribed as hard as a six-year-old could. Reading Vaccari’s report today is hard because everyone in it is trying so hard. On the 2nd of February, deciding the trouble lay in his stomach, the doctors gave him chocolate served in a tiny cup with two drops of essence of ambergris to strengthen his stomach and nourish him.

He could not keep it down. They gave him a consecrated slip of paper dedicated to the Immaculate Conception to swallow, a devotional remedy of the time. He said he was hungry. Nothing stayed in.

On the 5th of February, he was weak, his pulse faint, but cheerful and clear-headed enough that his doctors and attendants took hope. That afternoon, for the first time, he struggled to breathe. That evening, his hands trembled. The doctors reassured his frightened father.

Around 10:00, all three agreed the fever had dropped, and Maximilian went back to his own rooms relieved. At half past ten, the boy asked eagerly for something to drink and was given bread water with a little burgundy wine. He drank it with pleasure. At a quarter to eleven, the convulsions began.

Nothing the doctors tried stopped them. At a quarter to two in the morning of the 6th of February, 1699, Joseph Ferdinand died. He was six years, three months, and nine days old. Vaccari, who had cared for him almost daily since he was a few weeks old, wrote that it was as if the sun had gone down.

His mother’s coffin compared her to the dawn that gives birth to the sun. Now the doctor who had watched that sun every day of its short life used the same image for its setting. Vaccari performed the autopsy himself in front of the other physicians and the Bavarian Privy Counselor, Prielmayer. He found a body wasted by the long illness, a narrowed outlet from the stomach, which he judged had blocked his food, and fluid in the brain, which he blamed for the convulsions.

Otherwise, he wrote, the body was so finely proportioned that but for that stomach, the boy might have lived to the age of Nestor, the oldest of the Greek heroes. He also found the stomach coated with thick, blackish mucus. That detail fed rumors that the prince had been poisoned. Max Emanuel himself secretly believed his son had been poisoned with the help of the emperor’s people.

No evidence has ever confirmed it. The archivists who studied the medical reports are cautious: the real cause can no longer be determined, though several infections ending in heart and circulatory failure seem likely. In Vienna, Leopold wrote to his son-in-law that he had learned, with the greatest dismay, that God had called his beloved grandson from this world. He was, he said, so overwhelmed with grief that he could express nothing more.

The Imperial Court ordered no official mourning. By custom, it explained, mourning was not worn even for the emperor’s own children if they died before the age of 12. The Bavarian Counselor, Prielmayer, saw the larger consequence immediately. This blow, he wrote, struck not only the House of Bavaria, but almost all of Europe, which had seen the boy as the means by which the great inheritance could be divided, in his words, without a sword stroke.

He was right. Charles II, persuaded that only France could keep his empire together, signed a final will on the 2nd of October, 1700, leaving everything to Philip of Anjou, a grandson of Louis XIV. A month later Charles was dead. Leopold refused to accept it.

The War of the Spanish Succession began in 1701 and dragged on until 1714. Max Emanuel sided with France. In 1704 he was defeated at Höchstädt, the battle the English call Blenheim, and spent years in exile while Imperial armies occupied Bavaria. And the Spanish dowry he had married into: according to the historian Martínez López, Bavaria was still demanding it at the start of the 19th century.

It was never paid. The boy’s death had turned it into one more quarrel between Bavaria and Vienna. And under Maria Antonia’s will, if her son died, her property was to pass not to her husband but to her father. Now her son was dead.

Joseph Ferdinand was buried on the 8th of February, 1699, in a vault before an altar in Brussels’ Cathedral of St. Michael and St. Gudula. His heart and his inner organs stayed in Brussels, too.

He was never brought home to Bavaria and never taken to Vienna. So the family ends up scattered. The father died in Munich in 1726. The son still lies in Brussels.

And in the Imperial Crypt in Vienna, as she asked in her will, Maria Antonia lies beside her mother, Margarita. One was married to her uncle at 15 and died in her seventh pregnancy at 21. The other was promised to her uncle at seven, married at 16, and died eight weeks after giving birth at 23. Whether her extraordinary pedigree played any part in her death, no one can honestly say.

What the record does say is written on her own coffin in the words chosen to remember her: a princess most illustrious by birth, by marriage, by childbirth, and by death.