I have been reading the Onstelde-Zee (1654) pages about the Battle of Portland (with some difficulty). Now, I have open my copy of Schetsen uit de Geschiedenis van ons Zeewezen. I am looking at the Dutch ship losses and captains killed.
Rotterdam captains killed:
Corstiaen Corstiaenszoon, Prins te Paard (38 guns)
Quirijn van den Kerckhoff, Maria (26 guns)
Hendrick de Munnick, Wapen van Holland (30 guns)(burnt)
Amsterdam captains killed:
Augustijn Balck, Vrijheid (44 guns)
Joris van der Zaan, Campen (42 guns)
Cornelis Janszoon Poort, Kroon Imperiaal (34 guns), Director's ship (sunk)
Jacob Sijvertszoon Spanheijm, Elias (34 guns), Director's ship
Sipke Fockes, Groote Sint Lucas (28 guns), Director's ship (captured)
Dirck Schey, Achilles (28 guns)
Abraham van Campen, Arche Troijane (28 guns), Director's ship (sunk)
Noorderkwartier captain killed:
Pieter Aldertszoon, Burcht (24 guns)
Zeeland captains killed:
Joost Banckert, Liefde (26 guns)
Johannes Regermorter, a ship (30 guns), a Middelburg Directors ship
Johannes Michelszoon, a fast storeship
East India Company captain killed:
Cornelis Adriaanszoon Cruijck, Vogelstruis (44 guns) (captured)
In addition to this list, which is from Jan Evertsen's journal, we know that the Friesland ship, Frisia, commanded by Schelte Wichelma, blew up, and he was almost certainly killed.