He is married to Susanna Sophia van de Blocquery (ook: Bloegerij).
Permission for the marriage was obtained December 15, 1701.
They got married on January 5, 1702 at Amsterdam, Noord-Holland, Nederland, he was 26 years old.Source 1https://archief.amsterdam/archief/5001/533
Bruidegom: Willem Gerrit Dedel
Bruid: Susanna Sophia van de Blocqueri
Child(ren):
https://nl.wikipedia.org/wiki/Dedel_(geslacht)
Willem Gerrit Dedel (1675-1715),
schepen en secretaris van Amsterdam, bewindhebber van de West-Indische Compagnie