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.
Charles V of France Charles V (21 January 1338 – 16 September 1380), called the Wise (French: ""le Sage""), was a monarch of the House of Valois who ruled as King of France from 1364 to his death.