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
Scots language language of the original Parliament of Scotland. Because Scotland retained distinct political, legal, and religious systems after the Union, many Scots terms passed into Scottish English. From the mid-sixteenth century, written Scots was increasingly influenced by the developing Standard English of Southern England due to developments in royal and political interactions with England. When an English herald spoke to Mary of Guise and her councillors in 1560, at first they spoke in the "Scottyshe toung", but then he "not well understanding", they continued in her native French. King James VI, who in 1603 became James I of England, observed in