part of his court and wrote numerous odes to him. Rudolf kept a menagerie of exotic animals, botanical gardens, and Europe's most extensive "cabinet of curiosities" (Kunstkammer) incorporating "the three kingdoms of nature and the works of man". It was housed at Prague Castle, where between 1587 and 1605 he built the northern wing to house his growing collections. A lion and a tiger were allowed to roam the castle, documented by the account books which record compensation paid to survivors of attacks, or to family members of victims. Rudolf was even alleged by one person to have owned the Voynich manuscript, a codex whose author and purpose, as well as the language and script and posited cipher remain unidentified to this day. According to hearsay passed on in a letter written by Johannes Marcus Marci in 1665, Rudolf was said to have acquired the manuscript at some unspecified time for 600 gold ducats. No evidence in support of this single piece of hearsay has ever been discovered. The Codex Gigas was also in his possessions. As was typical of the time, Rudolf II had a portrait painted in the studio of the renowned Alonso Sánchez Coello. Completed in 1567, the portrait depicted Rudolf II at the age of 15. This painting can be seen at the Lobkowicz Palace in the Rozmberk room. By 1597, the collection occupied three rooms of the incomplete northern wing. When building was completed in 1605, the collection was moved to the dedicated Kunstkammer. Naturalia (minerals and gemstones) were arranged in a 37 cabinet display that had three vaulted chambers in front, each about 5.5 metres wide by 3 metres high and 60 metres long, connected to a main chamber 33 metres long. Large uncut gemstones were held in strong boxes. Rudolf's Kunstkammer was not a typical "cabinet of curiosities" – a haphazard collection of unrelated specimens. Rather, the Rudolfine Kunstkammer was systematically arranged in an encyclopaedic fashion. In addition, Rudolf II employed his polyglot court physician, Anselmus Boetius de Boodt, to curate the collection. Anselmus was an avid mineral collector and travelled widely on collecting trips to the mining regions of Germany, Bohemia and Silesia, often accompanied by his Bohemian naturalist friend, Thaddaeus Hagecius. Between 1607 and 1611, Anselmus catalogued the Kunstkammer, and in 1609 he published Gemmarum et Lapidum, one of the finest mineralogical treatises of the 17th century. As was customary at