Ban of Slavonia (Croatian: Slavonski ban; Hungarian: szlavón bán; Latin: Sclavoniæ banus) sometimes also Ban of "Whole Slavonia" (Croatian: ban cijele Slavonije; Hungarian: egész Szlavónia bánja; Latin: totius Sclavoniæ banus),[1] was the title of the governor of a territory part of the medieval Kingdom of Hungary and Kingdom of Croatia.
From 1102, the title Ban of Croatia was appointed by the kings of Hungary, and there was at first a single ban for all of the Kingdom of Croatia and Dalmatia, but later the Slavonian domain got a separate ban.
It included parts of present-day Central Croatia, western Slavonia and parts of northern Bosnia and Herzegovina.
In the 13th and 14th centuries, the more extensive title of Duke of Slavonia (meaning all lands of the Kingdom of Croatia and Dalmatia and Slavonian domain[2]) was granted, mainly to relatives of Hungarian monarchs or other major noblemen.
According to the public law of the Kingdom of Hungary, bans were counted among the "barons of the realm" and thus they enjoyed several privileges connected to their office.