Ulrich II, Count of Celje

Ulrich II, or Ulrich of Celje, was the last Princely Count of Celje. At the time of his death, he was captain general and de facto regent of Hungary, ban (governor) of Slavonia, Croatia and Dalmatia and feudal lord of vast areas in present-day Slovenia, Croatia, Bosnia, Austria, and Slovakia. He was also a claimant to the Bosnian throne. This accumulation of power prompted his assassination by the hands of the Hunyadi clan which plunged Hungary into civil unrest that was resolved a year later by the sudden death of king Ladislas the Posthumous and the election of Matthias Corvinus, Ulrich's son-in-law, as king. Ulrich's possessions in the Holy Roman Empire were inherited by the Habsburg Emperor Frederick III, while his possessions in Hungary were reverted to the crown.