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
Pound Scots shillings 4 pence (two-thirds of a pound Scots). When James VI became King James I of England in 1603, the coinage was reformed to closely match that of England, with 12 pounds Scots equal to the pound sterling. No gold coinage was issued from 1638 to 1700, but new silver coinage was issued from 1664 to 1707. In 1707, the pound Scots was replaced by the pound sterling at a rate of 12 to 1 (1 pound Scots equal to 1s 8d sterling), although the pound Scots continued to be used in Scotland as a unit of account for most