The first clash of arms came in May with a chance encounter at the Lousie-Law, a hill on the Burgh Muir within sight of Edinburgh Castle. This was followed by a month-long siege of the town of Edinburgh by the King's party, and a short second siege in October. On 13 May, the King's men built a small artillery redoubt for three cannon on the Dow Craig of the Calton Hill above Trinity College Kirk, which was attacked the same night. The King's party gathered in the Canongate in a meeting known as the creeping parliament, from their attempts to assemble inconspicuously, on 14-16 May, while Mary's supporters met in the tolbooth. The blockade of the castle and skirmishing continued, with another clash of arms in the grounds of Craigmillar Castle on 2 June 1571 and at the Gallow Hill of Leith (modern Shrubhill) on 10 June 1571. On 26 June, known subsequently as Black Saturday, the Earl of Morton brought his soldiers to Hawkhill at Restalrig, which provoked Grange to bring his men out to the Quarry Holes (where present-day Easter Road meets Abbey Mount). Morton's men pursued them back to the Water Gate at the eastern end of the Canongate. In July, the King's men garrisoned the Palace of Holyroodhouse and Grange responded on 25 July by placing guns in an entrenchment at the Black Friar Yard (the modern High School Yards) to shoot at the palace.