Roger Mortimer, 1st Earl of March on 22 May 1306, in a lavish ceremony in Westminster Abbey with two hundred and fifty-nine others, he was knighted by Edward and granted livery of his full inheritance. His adult life began in earnest in 1308, when he went to Ireland in person to enforce his authority. This brought him into conflict with the de Lacys, who turned for support to Edward Bruce, brother of Robert Bruce, King of Scots. Mortimer was appointed Lord Lieutenant of Ireland by Edward II on 23 November 1316. Shortly afterwards, at the head of a large army, he drove Bruce to Carrickfergus and
King of Hungary the transfer of the claim, and he declared that it is only the Archbishop of Esztergom who is entitled to crown the King of Hungary. The King Charles I of Hungary was crowned in May 1301 with a provisional crown in Esztergom by the Archbishop of this city, that lead to his second coronation in June 1309. In this time the Holy Crown wasn't used and he was crowned in Buda by the archbishop of Esztergom. However his third coronation was finally in 1310, in the city of Székesfehérvár, with the Holy Crown and effectuated by the archbishop of Esztergom.