In the siege of Mons, the forces of the Grand Alliance were under the command of a king known in Northern Ireland and Scotland as King what ?
Siege of Mons (1691) The Siege of Mons, 15 March–10 April 1691, was a major operation fought during the Nine Years' War, and was the main French objective for the 1691 campaign in the Spanish Netherlands. The city was besieged and captured before the normal commencement of the campaigning season with minimal losses. The outcome was not in doubt, but in a conflict dominated by siege warfare, neither the French army of King Louis XIV, nor the forces of the Grand Alliance under King William III, could bring about a decisive battle. After the siege the duc de Boufflers bombarded the neutral city of Liege, whilst the duc de Luxembourg captured Halle, and scored a minor victory against the Prince of Waldeck at the Battle of Leuze in September. Strategically, however, little had changed in the war, and both combatants returned to winter quarters at the end of the campaigning season.
Siege of Magdeburg (1806) The siege of Magdeburg (French: "Siège de Magdebourg") was a siege of the city that took place from 25 October to 8 November 1806 during the war of the Fourth Coalition. A French force, initially under the command of Marshal Grand Duke of Berg Joachim Murat, then a French army Corps under the command of Marshal Michel Ney laid siege and eventually obtained the surrender of Franz Kasimir von Kleist's Prussian force that had taken refuge in Magdeburg, Prussia's second city.