Dutch Captain: Jan Halfhoorn

In the sources available to me, I cannot even find Captain Halfhoorn's first name, but Andrew says that it is Jan. Captain Halfhoorn served the Admiralty of the Noorderkwartier. He commanded the old Jonge Prins (36 guns) in the Battle of Lowestoft, where the Jonge Prins was assigned to Volckert Schram's squadron. In the aftermath of the battle, the Jonge Prins was taken by the small Martin galley (14 guns). Sources:

1. Frank Fox, A Distant Storm: the Four Days' Battle of 1666, 1996.