What was the date of XXX?
Battle of the Fischa
The Battle of the Fischa or Battle of the Leitha took place on 11 September 1146 near the Fischa River at the border of the Kingdom of Hungary and the March of Austria, which belonged to the overlordship of the Dukes of Bavaria and it was ruled by margraves of the Franconian Babenberg dynasty.
11 September 1146