King Stephen III has escaped to Pozsony by the time Ladislaus, his uncle arrives in Székesfehérvár and is proclaimed king.

Lukas, Archbishop of Esztergom, who remains loyal to the young king, denies Ladislaus' coronation, however; he is therefore crowned in July 1162 by Mikó, Archbishop of Kalocsa.

On the occasion of his coronation, Ladislaus grants Tercia pars Regni (i.e., one third of the Kingdom of Hungary) to his brother, Stephen.

As Archbishop Lukas still denies the legitimacy of Ladislaus' rule and excommunicates him, Ladislaus has the Archbishop arrested.

Ladislaus sets Archbishop Lukas free on December 25, 1162, at the request of Pope Alexander III, but the prelate does not want to absolve the king.