Question: 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 ?

Context paragraphs:
Capture of Gibraltar: The Capture of Gibraltar by Anglo-Dutch forces of the Grand Alliance occurred between 1–3 August 1704 during the War of the Spanish Succession.  Since the beginning of the war the Alliance had been looking for a harbour in the Iberian Peninsula to control the Strait of Gibraltar and facilitate naval operations against the French fleet in the western Mediterranean Sea.  An attempt to seize Cádiz had ended in failure in September 1702, but following the Alliance fleet's successful raid in Vigo Bay in October that year, the combined fleets of the 'Maritime Powers', the Netherlands and England, had emerged as the dominant naval force in the region.  This strength helped persuade King Peter II of Portugal to sever his alliance with France and Bourbon controlled Spain, and ally himself with the Grand Alliance in 1703.  Now with access to the Portuguese port of Lisbon the Alliance fleets could campaign in the Mediterranean, and conduct operations in support of the Austrian Habsburg candidate to the Spanish throne, the Archduke Charles, known to his supporters as Charles III of Spain.

Nine Years' War: The Nine Years' War (1688–97) – often called the War of the Grand Alliance or the War of the League of Augsburg – was a conflict between Louis XIV of France and a European coalition of Austria and the Holy Roman Empire, the Dutch Republic, Spain, England and Savoy.  It was fought in Europe and the surrounding seas, Ireland, North America and in India.  It is sometimes considered the first global war.  There was the Williamite war in Ireland and Jacobite risings in Scotland, where William III and James II struggled for control of England and Ireland and a campaign in colonial North America between French and English settlers and their respective Indian allies, today called King William's War by Americans.

Siege of Namur (1692): The Siege of Namur, 25 May–30 June 1692, was a major engagement of the Nine Years' War, and was part of the French grand plan (devised over the winter of 1691–92) to defeat the forces of the Grand Alliance and bring a swift conclusion to the war.  Namur, sitting on the confluence of the Meuse and Sambre rivers, was a considerable fortress, and was a significant political and military asset.  French forces, guided by Vauban, forced the town's surrender on 5 June, but the citadel, staunchly defended by Menno van Coehoorn, managed to hold on until 30 June before capitulating, bringing an end to the 36-day siege.  Concerned that King William III planned to recapture the stronghold, King Louis XIV subsequently ordered his commander-in-chief, the duc de Luxembourg, to join battle with the Allies in the field, resulting in the bloody Battle of Steenkerque on 3 August.

Grand Alliance (League of Augsburg): The Grand Alliance was a European coalition, consisting (at various times) of Austria, Bavaria, Brandenburg, the Dutch Republic, England, Ireland, the Palatinate of the Rhine, Portugal, Savoy, Saxony, Scotland, Spain and Sweden.  The organization, which was founded in 1686 as the League of Augsburg, was known as the "Grand Alliance" after England and Scotland joined the League (in 1689).  It was originally formed in an attempt to halt Louis XIV of France's expansionist policies.

Frank Ogbuewu: Ambassador Frank Nchita Ogbuewu is a Nigerian political figure and a former Minister of Culture and Tourism for the country.  His appointment as minister was confirmed in July 2003 by the Obasanjo administration.  Frank Ogbuewu is on record as being the longest serving minister of the culture and tourism ministry in the Obasanjo administration.  Prior to his appointment as minister of culture and tourism, he served as Nigeria's ambassador to Greece and was also a one time mayor (1994–1996) in his local government council, Ikwo.  His appointment as chairman (mayor) of Ikwo Local Government shot him into the political lime light and he has continued to be a proponent of youth development in his state.  Frank Ogbuewu who until August 2010 was a member of the ruling People's Democratic Party (PDP) sought his former party's gubernatorial ticket in 2007 against the current governor of Ebonyi State, Chief Martin Elechi but lost.  He later vied for the PDP national chairmanship position but was not successful.  On August 28, 2010 during the traditional marriage of his oldest daughter, Nnenna Ogbuewu, the Ambassador announced his intention to vie once again, for the office of governor in his home state of Ebonyi but this time, under a different party.  His party of choice, the All Progressives Grand Alliance was made known in September, 2010.  On January 12, 2011, Ambassador Ogbuewu was nominated by the All Progressives Grand Alliance with a total vote of 1852 to represent the party in the forthcoming general elections that will be held in Nigeria on April 16, 2011.

Francisco Antonio de Agurto, Marquis of Gastañaga: Francisco Antonio de Agurto y Salcedo, 1st Marquis of Gastañaga (Vitoria, 1640 – Zaragoza, November 2, 1702) was a Spanish nobleman, viceroy and governor of Basque origin.  He became first Marquis de Gastañaga in 1676 and was Governor of the Habsburg Netherlands between 1685 and 1692.  He led the Spanish troops in the Battle of Fleurus (1690) and unsuccessfully defended Mons against the French.  He began a new royal chapel of Saint Joseph in Waterloo in 1687 an attempt to curry favour with the court, but was recalled to Madrid for his failure to hold Mons.  After this he became Viceroy of Catalonia between 1694 and 1696, where he was confronted with a French invasion during the War of the Grand Alliance.

William III of England: William III (Dutch: "Willem" ; 4 November 1650 – 8 March 1702), also widely known as William of Orange, was sovereign Prince of Orange from birth, Stadtholder of Holland, Zeeland, Utrecht, Gelderland, and Overijssel in the Dutch Republic from 1672, and King of England, Ireland, and Scotland from 1689 until his death.  It is a coincidence that his regnal number (III) was the same for both Orange and England.  As King of Scotland, he is known as William II.  He is sometimes informally known in Northern Ireland and Scotland as "King Billy".

Siege of Cuneo (1691): The Siege of Cuneo was fought on 28 June 1691 during Nine Years' War in Piedmont-Savoy, modern-day northern Italy.  The siege was part of King Louis XIV’s campaign against Victor Amadeus, the Duke of Savoy, who had sided with the Grand Alliance the previous year.  The siege was an attempt to gain a foothold on the Piedmont Plain, thus ensuring Marshal Catinat's army could winter east of the Alps.  Yet due to the incompetence of the two French commanders (in fact, General Vivien de Bulonde, because of decoded messages from Louis XIV to Catinat authorizing his punishment, has been proposed by some to have been the Man in the Iron Mask) – and a timely arrival of Imperial reinforcements – the siege proved a disaster, resulting in the loss of between 700 and 800 men.  Although French forces had taken Nice in the west, and Montmélian in the north, Catinat’s small, ill-equipped army was forced onto the defensive.  Louis XIV subsequently offered Amadeus generous peace terms but the Duke, who had by now received substantial Imperial reinforcements from the Empire, considered himself strong enough to continue hostilities.

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 Namur (1695): The Siege of Namur, 2 July – 1 September 1695, was the second siege of the city of Namur in the Nine Years' War.  The Allied forces of the Grand Alliance retook the city from the French, who had captured it in the first siege in 1692.  The recapture of Namur has been called the most important event in the Nine Years' War.

Supporting paragraphs: Siege of Mons (1691) William III of England
Answer: King Billy