Though he could later reconcile with the Emperor, the border conflict with Hungary culminated in several clashes of arms after 1242, after King Béla IV of Hungary marched into Austria to reconquer occupied lands.
Kuigi ta hiljem leppis keisriga, kulmineerus piirikonflikt Ungariga mitmes relvakokkupõrkes aastast 1242 edasi, pärast seda kui Ungari kuningas Béla IV marssis Austria vastu ja vallutas tagasi okupeeritud maad.