Groningen ships in April 1653

On 4 April 1653, there were four Groningen ships in service: the Stad Groningen en Ommelanden (38 guns and a crew of 110 men), the Graaf Hendrick (30 guns and a crew of 110 men), the Groninger Nicolaes (24 guns and a crew of 90 men), and the Graaf Willem (26 guns and a crew of 90 men). The Stad Groningen en Ommelanden was commanded by Joost Bulter, the Graaf Hendrick was commanded by Jan Reyndersz Wagenaer, the Groninger Nicolaes was commanded by Laurens Degelcamp, and the Graaf Willem was commanded by Jan Coenders.