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
Scots language mainly for geographical and cultural features, such as "ceilidh", "loch" and "clan". From the thirteenth century, the Early Scots language spread further into Scotland via the burghs, which were proto-urban institutions first established by King David I. In the fourteenth century Scotland, the growth in prestige of Early Scots and the complementary decline of French, made Scots the prestige dialect of most of eastern Scotland. By the sixteenth century Middle Scots had established orthographic and literary norms largely independent of those developing in England. From 1610 to the 1690s during the Plantation of Ulster some 200,000 Scots-speaking Lowlanders settled in