Who was the Grand Duke of Alba and Iron Duke in the Netherlands that defeated William the Silent's invading army?
Battle of Jodoigne The Battle of Jodoigne was fought October 20th 1568 between Spanish and Dutch forces. The Spanish under Fernando Álvarez de Toledo, 3rd Duke of Alba destroyed the rear guard of William the Silent's invading army, forcing him to abandon his invasion of the Netherlands and to retreat into Germany.
Siege of Oldenzaal (1597) The Siege of Oldenzaal was a short siege that took place during the Eighty Years' War and the Anglo–Spanish War by a Dutch and English army led by Maurice of Orange of the city of Oldenzaal from 20 to 23 October 1597. The city surrendered to the overwhelming Dutch and English force. The siege was part of Maurice's campaign of 1597 known as the "Ten Glory Years", his highly successful offensive against the Spaniards.