Which king, who reassumed the throne upon his son's death, had in his service the Flemish-born military engineer George Prosper Verboom?
Marquis of Verboom George Prosper Verboom, also known as Jorge Próspero de Verboom (9 January 1665 in Brussels – 19 January 1744 in Barcelona, Spain), was a Flemish-born military engineer in the service of the King of Spain. On 9 January 1727, King Philip V of Spain granted him the title of Marquis of Verboom.
Louis, Count of Vermandois Louis de Bourbon, "Légitimé de France", Count of Vermandois (2 October 1667– Flanders, 18 November 1683) was the eldest surviving son of Louis XIV of France and his mistress Louise de La Vallière.