Bruce's involvement in John Comyn's murder in February 1306 led to him being excommunicated by Pope Clement V (although he received absolution from Robert Wishart, Bishop of Glasgow). Bruce moved quickly to seize the throne, and was crowned king of Scots on 25 March 1306. Edward I's forces defeated Robert in the battle of Methven, forcing him to flee into hiding before re-emerging in 1307 to defeat an English army at Loudoun Hill and wage a highly successful guerrilla war against the English. Bruce defeated his other opponents, destroying their strongholds and devastating their lands, and in 1309 held his first parliament. A series of military victories between 1310 and 1314 won him control of much of Scotland, and at the Battle of Bannockburn in 1314, Robert defeated a much larger English army under Edward II of England, confirming the re-establishment of an independent Scottish kingdom. The battle marked a significant turning point, with Robert's armies now free to launch devastating raids throughout northern England, while also extending his war against the English to Ireland by sending an army to invade there and by appealing to the Irish to rise against Edward II's rule.