Vratislaus II of Bohemia
Leopold II, margrave from 1075, quarrelled with Emperor Henry IV during the Investiture Controversy, when he supported the papal side of Bishop Altmann of Passau. Though Leopold had to cope with the invading troops of Duke Vratislaus II of Bohemia and was defeated at the 1082 Battle of Mailberg, the emperor was unable to oust him from his march or to prevent the succession of his son Leopold III in 1096. Between 1075 - 1095 the dynasty had its seat at Babenberg castle of Gars am Kamp.