Christoffel van IJsselstein

• Willem van IJsselstein, Sheriff of Genemuiden; he married firstly Margriet Joostdr van Wijngaarden, and secondly Elisabeth Becker, with both of whom he left progeny. A son by his first wife, Christoffel van IJsselstein, was a Lieutenant-General in the forces of the United Provinces during the Dutch Revolt and acted as Governor of Geertruidenberg and Heusden.
• Fransken van IJsselstein, married Coenraat van Diepholt, Marshal of the Nether-Bishopric of Utrecht and Montfoort, Castellan of Abcoude.