Jovan Nenad
Jovan Nenad (Serbian Cyrillic: Јован Ненад; Hungarian: Fekete Iván or János; c. 1492 – 26 July 1527), known as "the Black", was a Serb military commander in the service of the Kingdom of Hungary who took advantage of a Hungarian military defeat at Mohács and subsequent struggle over the Hungarian throne to carve out his own state in the southern Pannonian Plain.