Robert I, popularly known as Robert the Bruce, was King of Scots from 1306 until his death in 1329. Robert led Scotland during the First War of Scottish Independence against England. He fought successfully during his reign to restore Scotland to an independent kingdom and is regarded in Scotland as a national hero. Robert was a fourth-great-grandson of King David I of Scotland, and his grandfather, Robert de Brus, 5th Lord of Annandale, was one of the claimants to the Scottish throne during the "Great Cause".