Henry de Percy, 1st Baron Percy the commissioning of Warwolf, a giant trebuchet which flattened the curtain walls. The defenders had tried to surrender four days earlier, but had been made to wait by the king while he tried out his new toy. In September 1305 the first joint English and Scottish parliament met at Westminster to agree a constitution for the unified state, with Percy playing a leading role in the negotiations, but Robert Bruce, a leading representative of the Scots, was already conspiring to rebel. On 25 March 1306 Robert Bruce was crowned King of Scotland at Scone Abbey, upon which Edward confiscated his
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.