Dutch Captain: Claes Aldertszoon

Claes Aldertszoon served the Admiralty of the Noorderkwartier. At the start of the First Anglo-Dutch War, he commanded the hired ship Nieuwkasteel. He probably fought in the Battle of the Kentish Knock. By later in 1653, he commanded the Hoorn (or Wapen van Hoorn), and fought at the Battle of Scheveningen. He was present in Lt-Admiral van Wassenaer's expedition to Danzig in 1656 (again, in the Wapen van Hoorn). In 1658, he fought in the Battle of the Sound, still in the Wapen van Hoorn (28 guns). Sources:

1. James C. Bender, unpublished manuscript “Dutch Captains”, 2005.
2. James C. Bender, unpublished manuscript "Dutch Ships 1620-1700", 2004.