Rudolf II [1552-1612] -- HRE
King of Germany
Archduke of Austria
King of Bohemia
King of Hungary
Regent of Tyrol and Further Austria
a/k/aAustria (1576-1608), Archduke
Bohemia (1572-1608), King
Croatia (1572-1608), King: as Rudolf
HRE (1576-1612), Emperor
Hungary (1572-1608), King: as Rudolf
Rudolf II was one of the most eccentric European monarchs of that or any other period. Rudolf collected dwarfs and had a regiment of giants in his army. He was surrounded by astrologers, and he was fascinated by games and codes and music. He was typical of the occult-oriented noblemen of this period and epitomized the liberated northern European prince. He was a patron of alchemy and supported the printing of alchemical literature.
Note that this HRE is called Rudolf II as successor of Rudolf I who was German king (1273-1291) but was not emperor.