Career
He was the only child of King Emeric. However, Duke Andrew ignored the child"s interests. As a result, Ladislaus"s mother, Constance of Aragon, fled to Austria, taking Ladislaus with her.
Ladislaus died unexpectedly in Vienna.
Infancy (c 1200–1204)
The exact date of Ladislaus"s birth is unknown, but it is likely that he was born around 1200, according to historians Gyula Kristó and Ferenc Makk. John, Archbishop of Kalocsa, crowned Ladislaus on 26 August 1204.
Emeric reconciled with his defiant younger brother, Andrew, whom he had imprisoned. He set Andrew free, and made him regent for the duration of Ladislaus"s minority.
King Emeric fell ill with a type of incurable illness.
On 30 November 1204, King Emeric died, and Ladislaus succeeded him. Pope Innocent III sent a letter to Duke Andrew, warning him to respect the child king"s interests. However, refusing to heed Innocent"s warning, Andrew seized the money that Emeric had deposited in the Pilis Abbey for Ladislaus.
Considering her son"s position to be insecure, Constance fled to Austria, taking Ladislaus with her.
Although Duke Andrew made every effort to capture Queen Constance and King Ladislaus before they could escape, they were able to reach Vienna, Austria. Ladislaus abruptly died on 7 May 1205.
His body was carried to Székesfehérvár, and buried in the Székesfehérvár Basilica. He reigned six months and five days.
He departed to the Lord.. on May 7.
His body rests at Alberta Secondary sources.