against the new regent, the Earl of Lennox. The stand-off which followed was not resolved until two years later, and became known as the "Lang Siege", from the Scots word for "long". Hostilities began in May, with a month-long siege of the town, and a second short siege in October. Blockades and skirmishing continued meanwhile, and Grange continued to refortify the castle. The King's party appealed to Elizabeth I of England for assistance, as they lacked the artillery and money required to reduce the castle, and feared that Grange would receive aid from France and the Duke of Alba in the Spanish Netherlands. Elizabeth sent ambassadors to negotiate, and in July 1572 a truce was agreed and the blockade lifted. The town was effectively surrendered to the King's party, with Grange confined to the castle. The truce expired on 1 January 1573, and Grange began bombarding the town. His supplies of powder and shot, however, were running low, and despite having 40 cannon available, there were only seven gunners in the garrison. The King's forces, now with the Earl of Morton in charge as regent, were making headway with plans for a siege. Trenches were dug to surround the castle, and St Margaret's Well was poisoned. By February, all Queen Mary's other supporters had surrendered to the Regent, but Grange resolved to resist despite water shortages within the castle. The garrison continued to bombard the town, killing a number of citizens. They also made sorties to set fires, burning 100 houses in the town and then firing on anyone attempting to put out the flames. In April, a force of around 1,000 English troops, led by Sir William Drury, arrived in Edinburgh. They were followed by 27 cannon from Berwick-upon-Tweed, including one that had been cast within Edinburgh Castle and captured by the English at Flodden. The English troops built an artillery emplacement on Castle Hill, immediately facing the east walls of the castle, and five others to the north, west and south. By 17 May these batteries were ready, and the bombardment began. Over the next 12 days, the gunners dispatched around 3,000 shots at the castle. On 22 May, the south wall of David's Tower collapsed, and the next day the Constable's Tower also fell. The debris blocked the castle entrance, as well as the Fore Well, although this had already run dry. On 26 May, the English