Scotland in the Middle Ages excommunication of Bruce and his followers by Pope Clement V, his support slowly strengthened; and by 1314 with the help of leading nobles such as Sir James Douglas and Thomas Randolph only the castles at Bothwell and Stirling remained under English control. Edward I had died in 1307. His heir Edward II moved an army north to break the siege of Stirling Castle and reassert control. Robert defeated that army at the Battle of Bannockburn in 1314, securing "de facto" independence. In 1320 the Declaration of Arbroath, a remonstrance to the pope from the nobles of Scotland, helped convince Pope
Robert the Bruce north from Berwick to relieve the castle. Robert, with between 5,500 and 6,500 troops, predominantly spearmen, prepared to prevent Edward's forces from reaching Stirling. The battle began on 23 June as the English army attempted to force its way across the high ground of the Bannock Burn, which was surrounded by marshland. Skirmishing between the two sides broke out, resulting in the death of Sir Henry de Bohun, whom Robert killed in personal combat. Edward continued his advance the following day, and encountered the bulk of the Scottish army as they emerged from the woods of New Park. The English