Oligarch (Kingdom of Hungary)

An oligarch or provincial lord (tartományúr; formerly the term petty king was also used) was a powerful lord who administered huge contiguous territories through usurping royal prerogatives in the Kingdom of Hungary in the late 13th and early 14th centuries.

List of oligarchs

 * Amadeus Aba
 * Matthew Csák
 * Ugrin Csák
 * Ladislaus Kán