Roger Mortimer, 1st Earl of March on 22 May 1306, in a lavish ceremony in Westminster Abbey with two hundred and fifty-nine others, he was knighted by Edward and granted livery of his full inheritance. His adult life began in earnest in 1308, when he went to Ireland in person to enforce his authority. This brought him into conflict with the de Lacys, who turned for support to Edward Bruce, brother of Robert Bruce, King of Scots. Mortimer was appointed Lord Lieutenant of Ireland by Edward II on 23 November 1316. Shortly afterwards, at the head of a large army, he drove Bruce to Carrickfergus and
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