Braslav, Duke of Lower Pannonia

882–896) was a prince who ruled the Slavs in Lower Pannonia, in a territory located mostly in modern-day Croatia, between 884 and 896 as a vassal of Arnulf of Carinthia.

[1] Sometime during 891, according to the Annals of Fulda, Arnulf sent an embassy led by margrave Arbo to Moravia in order to renew the peace.

[4] A letter written by the margrave soon announced that the legates were returning from Svatopluk and the Moravians who had agreed "to give themselves in friendship".

[5] First Arnulf met with Braslav, the Slavic dux on the river Sava, next raised an army of Franconians, Bavarians and Alamanni, and also recruited Hungarians to join his campaign (for the latter recruitment, Ottonian authors blamed Arnulf for unleashing the Hungarians on Europe).

[1] Thus, in 895[2][7] or 896,[1][8] Arnulf entrusted Mosapurc (modern Zalavár, Hungary) and Pannonia to Braslav,[1][2] thereby strengthening the defense of his southeastern frontier.