Dutch Captain: Gerrit Polanen

Gerrit Polanen served the Admiralty of Amsterdam. In 1665, he commanded the yacht Brak (18 guns and a crew of 75 men) and fought in the Battle of Lowestoft, where he was assigned to Lt-Admiral van Wassenaer's squadron. The Brak was presumably the three-masted yacht built in 1649, with dimensions of 115ft x 23ft x 10.5ft. There is no further mention of him in the published sources available to me. Sources:

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