Constance of Aragon, Holy Roman Empress

The King wanted to secure his succession and had his brother Andrew promise to protect the child and help him govern the Kingdom of Hungary until reaching adulthood.

[1] The former Regent and now King Andrew II of Hungary took the body of his nephew and buried him in the Royal Crypt of Székesfehérvár.

The Pope solicited the hand of the Dowager Queen of Hungary for his pupil, the young King Frederick II, Holy Roman Emperor.

The Aragonese King accepted the proposal; Constance left her mother and the abbey of Nuestra Senora and began her trip to Sicily (1208).

On 9 December 1212, Frederick was crowned King of Germany in opposition to Otto IV, Holy Roman Emperor.

At first Frederick controlled Southern Germany and Otto IV was effectively deposed on 5 July 1215.