King Emeric's five-year-old son, crowned on August 26, 1204, while his dying father was still alive, had in June 1205 upon his father's death of acceded to the Hungarian throne as Ladislaus III.

With the coronation, Emeric had wanted to ensure his son's succession to the throne.

Emeric had made his brother, Duke Andrew, who had rebelled against the king several times, promise that he would protect the child and help him in the governance until he became an adult.

Andrew, promising this, had been released from prison and is appointed as regent during the minority of his nephew.

The following year Andrew deposes Ladislaus and takes the throne as Andrew II.

The Dowager Queen, Constance of Aragon, escapes with her son to Vienna to Leopold VI, Duke of Austria, but Ladislaus soon dies there on May 7.

The former Regent and now King Andrew II of Hungary takes the body of his nephew and buries him in the Royal Crypt of Székesfehérvár.

Duke Leopold sends Constance back to Aragon.