On 14 March 1074 at the Battle of Mogyoród, the king's forces were decisively defeated by his cousins and their allies, the Dukes of Poland and Bohemia.
Pada tanggal 14 Maret 1074 di Pertempuran Mogyoród, pasukan raja dikalahkan dengan telak oleh sepupu dan sekutu-sekutu mereka, Adipati Polandia dan Bohemia.