Invasions of the British Isles the Scots all but surrendering. However, the Scots rose again under their new king, Robert the Bruce, and routed the army of Edward II during the Battle of Bannockburn in 1314. Peace was concluded in 1327. In 1332, Edward III of England supported the claims of Edward Balliol to the Scottish throne. Balliol led an invasion, and following his success at Dupplin Moor, Edward III also moved north. By 1333, much of Scotland was under English occupation, with eight of the Scottish lowland counties being ceded to England by Edward Balliol. In 1334, Edward III invaded again, but he accomplished
Robert the Bruce from English rule (having received a reply to offers of assistance from Donal O'Neil, king of Tyrone), and to open a second front in the continuing wars with England. Bruce was even crowned as High King of Ireland in 1316. Robert later went there with another army to assist his brother. In conjunction with the invasion, Bruce popularised an ideological vision of a "Pan-Gaelic Greater Scotia" with his lineage ruling over both Ireland and Scotland. This propaganda campaign was aided by two factors. The first was his marriage alliance from 1302 with the de Burgh family of the Earldom of