High Quality Content by WIKIPEDIA articles Demetrius Zvonimir (Croatian: Dmitar Zvonimir, Latin: Demetrius Sunimirio, pronounced; ? - 20 April 1089i) was King of Croatia from 8 October 1076 until his death. He also ruled as Ban of Slavonia (1064-1074), and was named Duke of Croatia in around 1075. His native name was Zvonimir, while the name Demetrius (Dmitar in Croatian) was adopted at his coronation.