Following a nine-year-long period of cooperation, conflicts arose among the king and the dukes, and the latter could expand their power over the larger part of the kingdom and the king had to flee to the western borders. In 1074, the eldest duke, Géza was proclaimed king, while King Solomon could maintain his rule only in some western counties of the kingdom. Following his ascension to the throne, King Géza confirmed his brothers, Ladislaus and Lampert in the possession of the Duchy. When Géza died on 25 April 1077, his partisans proclaimed Ladislaus king who could enforce King Solomon to accept his rule in 1081. During Ladislaus' reign, the Duchy may have governed by his brother, Duke Lampert, but it has not been proven yet.