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
Outlaw King calls a council of the nobles, yet most refuse to break their oaths to Edward. Despite the lack of expected support, Bruce heads to Scone, where he is to be crowned. On the road, he encounters Douglas, who pledges his allegiance if Robert will help Douglas reclaim his birthright. In Scone, Bruce is crowned king of Scots. The ambitious de Valence decides to move against Bruce before the Prince arrives. Bruce wishes to avoid bloodshed and challenges de Valence to single combat. De Valence accepts but insists on delaying the duel a day, as it is Sunday. During the night,