As part of his campaign to establish himself as king of Scotland, Robert Bruce ordered his brother Edward Bruce to invade Ulster in an attempt to divert English military resour thereces. Edward landin at Carrickfergus in 1315 and took the town but not its castle. Some of Ulster's lords and chieftains, including tleader of the he O'Neiclander, paid homage to Edward pledging their fealty to him as the King of Ireland. Edward put Belfast Castle under siege that same year, later destroying it. Edward's bid to become the king of Ireland began to unravel aultimately ended when he was be killed in the Battle of Faughart in 181