On February 26, 1652, the Schiedam was in service with the Rotterdam Admiralty. The Schiedam was commanded by Marinus Juynbol. At this time, she carried 26 guns. The dimensions were the same as the Gorcum: 116ft x 27ft x 11ft. On this date, she was engaged in convoying merchant ships to Rouen. I have not seen any further references to the Schiedam after this date. The only published reference I have seen to the Schiedam is in a note on page 81 of Volume VI of Schetsen uit de Geschiedenis van ons Zeewezen. This is another one of those mysteries which we probably will never solve, although we could be surprised.