Ladislas was a son of Michael, who was the younger son of Grand PrinceTaksony. According to Hungarian historians, including Gyula Kristó, he was the younger of Michael's two sons. On the other hand, Steinhübel and other Slovak scholars write his brother, Vazul was younger than him. Their mother's name is unknown. György Györffy writes that she "may have been" related to Samuel of Bulgaria, because her two sons' name was popular in Samuel's family. Györffy also writes that neither Ladislas nor his brother, both still minors, were in the position to hold administrative functions when their father died sometime before 997. In contrast with this view, Vladimir Segeš writes that their uncle, Grand Prince Géza appointed Ladislas to administer the "Duchy of Nitra" soon after their father was murdered, around 977, on the same grand prince's orders. Segeš adds that Géza dismissed Ladislas in favor of his own son, Stephen in 995, but the latter, when succeeded Géza as grand prince in 997, again granted the duchy to Ladislas. A third view is presented by Steinhübel. He writes that Ladislas the Bald only became the duke of Nitra after Boleslav the Brave, Duke of Poland occupied large territories to the north of the river Danube in 1001 from Stephen, who had in the meantime been crowned the first king of Hungary. Segeš likewise writes that Ladislas administered for the second time the Duchy of Nitra under Polish suzerainty in the early 11th century. On the other hand, the theory that large territories to the north of the Danube were under Polish suzerainty in the early 11th centurywhich is only based on a late source, the Polish-Hungarian Chronicleis sharply criticized by Györffy. He writes that the "Duchy of Nitra" was administered by one of King Stephen's henchmen, Hont in this period. Whether Ladislas died as a vassal of Boleslaus the Brave or of Stephen I is debated even by Slovak historians. According to Segeš, he only died after the Poles withdrew from the Duchy of Nitra in 1018, and upon his death his brother, Vazul succeeded him as King Stephen's vassal. On the other hand, Steinhübel says that Ladislas was still Boleslaus the Brave's vassal when he died and his brother succeeded him sometime before 1030.
Family
The Illuminated Chronicle writes that he took "his wife from Ruthenia". Based on this report, the Hungarian historian, Gyula Kristó says that she was a member of the Rurik dynasty of the Kievan Rus'. He adds that her name was possibly Premislava. According to many Hungarian chronicles, Ladislas was the forefather of the kings of Hungary reigning after 1046, because he fathered three sons, including, Kings Andrew I and Béla I of Hungary. However, other sources, including the Chronicle of Zagreb and a Legend of Saint Gerard, preserved the tradition that their father was actually Vazul. Both Györffy and Steinhübel write that Ladislas the Bald has a son, but his name was Bonuzlo, according to the former, and Domoslav, according to the latter. The following family tree presents Vazul's ancestry and his offspring. Whether Menumorut is an actual or an invented person is debated by modern scholars. A Khazar, Pecheneg or Volga Bulgarian lady. Györffy writes that she may have been a member of the Bulgarian Cometopuli dynasty. Kristó writes that she may have been a member of the Rurik dynasty from Kievan Rus'. Many Hungarian chronicles write that Levente, Andrew and Béla were Ladislas the Bald's sons, but the reliability of this report is dubious according to modern historians.
