After winning the battle of Novi Sad, also known as Petrovaradin, this man ordered Belgrade to be fortified.  
After winning the battle of Novi Sad, also known as Petrovaradin, this man ordered Belgrade to be fortified.  That victory led to the exchange of Oltenia and the fortress of Temesvar through the treaty of Passarowitz.  Fourteen years earlier, this man had fought against his own cousin, Louis-Joseph, Duke of Vendome, at the battle of Cassano. A decisive victory he won on the Tisa River against Mustafa II led to the Treaty of Karlowitz in 1699.  FTP, name this victor at the battle of Zenta, who served at Oudenarde, Malplaquet, and Blenheim during the War of the Spanish Succession, one of the greatest generals to serve the Austrian Hapsburgs.
After winning the battle of Novi Sad, also known as Petrovaradin, this man ordered Belgrade to be fortified.  
Prince Eugene of Savoy (or Eugenio di Savoia or Eugen von Savoyen)