Siege of Mons (1709)

Siege of Mons
Part of the War of the Spanish Succession
A plan of the siege of Mons in 1709
Date 19 September – 23 October 1709 Location Mons, Spanish Netherlands (Present-day Belgium) Result Grand Alliance victory
Belligerents
Dutch Republic  Great Britain Habsburg monarchy	Bourbon Spain France
Commanders and leaders
Prince of Orange[1] Eugene of Savoy[2]	Marquis de Grimaldi[1]
Strength
21,000[3]	3,800–4,280[3][1]
Casualties and losses
1,450–2,200[3][4]	700[5]

The siege of Mons took place between 19 September and 23 October 1709 during the War of the Spanish Succession.^[6] It saw a Franco-Spanish garrison in the fortified town of Mons, then in the Spanish Netherlands, besieged by a force of the Duke of Marlborough's Grand Alliance army under the command of the Prince of Orange.^[7]

The attempt of the French Duke of Villars to relieve the siege resulted in the costly Allied victory at the Battle of Malplaquet on 11 September 1709.^[8] Following the battle, greater numbers of Allied soldiers under Eugene of Savoy joined the besieging army from late September. The Franco-Spanish garrison capitulated the following month. Owing to high Allied and French losses at Malplaquet, the capture of Mons was the final significant engagement of the campaign of 1709.