Page "Ladislaus I of Hungary" Paragraph 3

In 1048, the family moved to Hungary, where his father received as appanage one third of Hungary (" Tercia pars Regni ") from his brother, King Andrew I of Hungary who had acquired the throne from King Peter after a pagan revolt.

Following his accession, King Andrew I had to face the attacks of Henry III, Holy Roman Emperor whose supremacy had been acknowledged by King Peter.

King Andrew I and Duke Béla cooperated closely against the German attacks and they would preserve Hungary's independence.

However, their cooperation began to loosen from 1053 when the king fathered a son, Salamon, because from that time King Andrew wanted to ensure his son's inheritance against his brother, who pursuant to the old Hungarian custom, as the oldest member of the royal family, could lay claim to the throne in case of the king's death.