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
Battle on the Marchfeld to the throne. On the same occasion he reconciled with the Brandenburg margraves, ceding them the guardianship over the minor heir apparent. King Ladislaus IV exerted himself in the christianization of the Cuman warriors, before he was assassinated in 1290. Ottokar's son, the young king Wenceslaus II of Bohemia, turned out to be a capable ruler. In 1291 he acquired the Polish Seniorate Province at Kraków and was crowned King of Poland in 1300. He was even able to secure the Hungarian crown for his son Wenceslaus III, still a minor, who nevertheless was murdered in 1306, one year after