stadtholder for the Spanish Crown of Drenthe, Friesland, Groningen and Overijssel (1572-1573), stadtholder of Guelders (1572-1577), substitute stadtholder of Holland, Zeeland and Utrecht (1574-1577), stadtholder of Namur and Artois (after 1578) and baron of Hierges. In 1567 Gilles commanded the Siege of Valenciennes, the first siege of the Eighty Years' War. He captured and sacked Schoonhoven, and Oudewater in August 1575. He was killed during the Siege of Maastricht (1579).
