The seven Rotterdam Directors' ships

We know a good bit about six of the seven ships hired in 1652 by the Rotterdam Directors. The one exception is the Erasmus, which Vreugdenhil did not even know about, when he made his list of Dutch ships and we only know the name and captain. Sijmon Cornelisz van der Meer commanded the Erasmus up until the ship was sunk in action in June 1652. One other ship, the Sint Pieter, was apparently damaged in fight in June. Adriaen de Zeeuw commanded the Sint Pieter from the time it was hired until the fight in June. He left the service and Sijmon Cornelisz van der Meer took command of the Sint Pieter. His service was spotty in the war. In the summer of 1652, he was too ill to be at sea and his lieutenant, Jan Jansz van der Valck commanded the Sint Pieter, including in the Battle of Plymouth, with De Ruyter's fleet. Several of the ships served through the war, and perhaps, beyond. One was Ruth Jacobsz Buys' ship the Hollandia and the other was the Prins. This is a summary list of ships and captains:

Adm    Ship          Guns Crew Captain                       Fate
R-Dir  Erasmus                 Sijmon Cornelisz van der Meer sunk in action June 1652
R-Dir  Sint Pieter   28   122  Adriaen de Zeeuw            
                               Sijmon Cornelisz van der Meer
                               Lt. Jan Jansz van der Valck
R-Dir  Jonas         36   125  Jan Evertsz de Liefde         Eventually paid off
R-Dir  Prins         38   120  Corstiaen Corstiaensz       
                               Jacob Cleijdijck
R-Dir  Hollandia     26   105  Ruth Jacobsz Buys
R-Dir  Meerman       30   120  Jacob Cleijdijck              sunk on 28 Feb 1652
R-Dir  Sint Pieter   29   110  Isaac de Jongh                foundered in Aug 1652

Sources:

1. Hendrik de Raedt, Lyste van de schepen van Oorloge onder het beleyt Admirael Marten Harpersz. Tromp, 1652
2. Carl Stapel, unpublished manuscript "Directieschepen van de Maze d.d. 6 maart 1653", 2006