Answer
Lucas, the Archbishop of Esztergom, opposed the coronation of Béla III due to allegations of simony, which refers to the practice of buying or selling ecclesiastical positions. Lucas believed that Béla's father, Géza II, had obtained the throne through simony and that Béla was therefore not the rightful heir. Lucas's opposition delayed Béla's coronation for several months and contributed to a period of political instability in Hungary.