William of Orange was assassinated on 10 July 1584 at Delft by a Roman Catholic who believed that by assassinating William he would prevent the rebellion against Catholic Spain. William's eldest son Philip William was loyal to Spain so it was Maurits who was appointed stadholder of Holland and Zeeland, or the United Provinces of the Netherlands, in 1584.
William ng Orange ay assassinated sa 10 Hulyo 1584 at Delft sa pamamagitan ng isang Katoliko Romano na sumampalataya na sa pamamagitan ng assassinating William siya ay maiwasan ang paghihimagsik laban sa Katoliko Espanya. William's pinakamatanda anak Philip William ay tapat sa Espanya upang ito ay Maurits na ay hihirangin stadholder ng Holland at Zeeland, o ang Pilipinas Mga lalawigan ng Netherlands, in 1584.