Lamberton and other prominent churchmen and nobles. Less than seven weeks after the killing in Dumfries, at Scone Abbey on 25 March 1306, Robert Bruce was crowned as King Robert I of Scotland. He then began a new campaign to free his kingdom. After being defeated at the Battle of Methven, he was driven from the Scottish mainland as an outlaw. His wife, three of his brothers, his sisters, and daughter were captured by the English. The three brothers were hanged, drawn and quartered. Bruce later came out of hiding in 1307. The Scots thronged to him, and he defeated the English in a number of battles. His forces continued to grow in strength, encouraged in part by the death of Edward I in July 1307. The Battle of Bannockburn in 1314 was an especially important Scottish victory, after which English released the female relatives of Bruce for exchange. In 1320, the Declaration of Arbroath was signed by the community of the realm of Scotland and sent to the Pope affirming Scottish independence from England. In 1327, Edward II of England was deposed and killed. The invasion of the North of England by Robert the Bruce forced Edward III of England to sign the Treaty of Edinburgh–Northampton on 1 May 1328, which recognised the independence of Scotland with Bruce as King. To further seal the peace, Robert's son and heir David married the sister of Edward III. See also Wars of Scottish Independence Second War of Scottish Independence Notes References .01 13th century in Scotland 13th-century military history of the Kingdom of England 14th century in Scotland Warfare in medieval Scotland 14th-century military history of Scotland