An emperor might survive a rebellion, lose a kingdom and retreat behind the walls of his palace. But how could he escape a fate written in the stars?
One of Prague’s most memorable legends tells of Rudolf II and his favourite lion, Mohamed. According to the story, an astrologer warned the emperor that their lives were connected: when the lion died, Rudolf’s own death would soon follow.
For a ruler who surrounded himself with astronomers, alchemists and extraordinary objects, it was a disturbing prediction. An animal in his menagerie had become something much more unsettling: a living reminder that his own time would eventually run out.
Lions at Prague Castle
The setting of the story is real. Rudolf II kept an impressive collection of exotic animals in Prague, continuing a tradition established by earlier rulers. His father, Maximilian II, and grandfather, Ferdinand I, had already developed facilities for keeping animals around the royal residence.
Under Rudolf, the collection flourished. Its best-known location was Lví dvůr, the Lion Court, near the Royal Garden on the northern side of Prague Castle. The emperor had it adapted with outdoor enclosures, heated animal quarters and a viewing gallery that was occasionally opened to the public.
Imagine the surprise of encountering a living lion in Renaissance Prague. Most people would have known the animal from coats of arms, religious images or travellers’ accounts. Here, behind an enclosure, was the real creature: breathing, moving and capable of a roar that no painted royal emblem could produce.
Rudolf’s fascination extended beyond lions. Across his animal collections in Prague were creatures including camels, antelopes, exotic birds and cheetahs. These animals brought distant parts of the world into the emperor’s surroundings, much as his collections of art and natural curiosities did.
The Emperor’s Favourite
Among these animals, Mohamed became the most famous. Prague Zoo’s historical account identifies him as Rudolf’s particular favourite. Popular retellings add that the lion was a gift from the Ottoman sultan, although that detail deserves more caution than it usually receives.
It is easy to see why a lion suited an imperial menagerie. Lions represented strength and royal authority, and the lion was already central to the heraldry of the Kingdom of Bohemia.
Yet Mohamed’s place in Prague’s storytelling is more personal. The legend turns a magnificent royal possession into an animal whose survival mattered desperately to its owner.
Keeping the lion healthy was no longer simply a question of protecting a valuable creature. In the story, it meant protecting the emperor himself.
A Prediction Written in the Stars
The prophecy is usually attributed to Tycho Brahe, the Danish astronomer who worked under Rudolf’s patronage.
According to the legend, Tycho examined the horoscopes of the emperor and the lion and discovered a troubling connection. Their lives were governed by the same celestial influences. The death of one would announce the approaching death of the other. Czech Radio’s retelling explicitly links Mohamed’s fate to Rudolf’s through this prediction.
The story belongs naturally to the atmosphere of Rudolf’s Prague, where the study of the heavens could include both astronomical observation and astrological interpretation.
When Mohamed Died
In the most familiar Czech version, Mohamed died on 19 January 1612.
The emperor’s favourite was gone. If the prophecy was true, Rudolf knew what must come next.
On 20 January 1612, Rudolf II died at Prague Castle.
That is the chilling sequence preserved in the legend: the lion one day, the emperor the next. Czech Radio repeats precisely this version of events. Rudolf’s own date of death is firmly established; the lion’s exact date and the supernatural connection require greater caution.
There was also a much less mysterious background to the emperor’s death. Rudolf had been seriously ill, and his condition had deteriorated during the final weeks of his life. His death was expected by those around him.
The legend compresses that difficult ending into one unforgettable moment: a ruler hears that his lion has died and recognises his own approaching fate.
An Emperor Who Could Not Command His Future
By then, Rudolf had already suffered a devastating political defeat. In 1611, he had been forced to surrender the Bohemian crown to his brother Matthias. He remained Holy Roman Emperor, but lived out his final months at Prague Castle with his authority greatly diminished. He died before reaching his sixtieth birthday.
Against that background, the story of Mohamed becomes especially powerful.
An emperor could collect rare animals, commission extraordinary works of art and bring brilliant scholars to his court. He could order comfortable quarters built for a lion. He could ask astrologers to interpret the heavens.
What he could not do was guarantee another day of life, either for the animal or for himself.
Remembering Mohamed at Prague Castle
The name Lví dvůr still preserves the memory of the Castle’s former animal collection. After Rudolf’s death, his menageries gradually declined, and the remarkable concentration of exotic creatures disappeared.
Mohamed, however, remained in Prague’s stories.
The lion is remembered through a prediction whose truth we cannot establish, attached to a real emperor, a real menagerie and a firmly recorded death. That mixture of history and legend gives the tale its lasting appeal.
Somewhere near the gardens of Prague Castle, a lion once lived under imperial care. Centuries later, people still tell how his death announced the end of Rudolf II.
Article by Michal, licensed Prague tour guide and founder of Free Walking Tour Prague, sharing Prague's history, fascinating stories and hidden treasures with visitors since 2016.