(1) He is married to (Not public).
They got married
(2) He is married to Janneken Cocks.
Permission for the marriage has been obtained in Hontenisse on July 17, 1680.Source 1
datum: 17 jul 1680; naam bruidegom: Nicolaes de Mat; weduwnaar van: Dingentien Verhoeven; naam bruid: Janneken Cocks; weduwe van: Pieter de Vlieger; scan: 8; link naar scan: https://www.familysearch.org/ark:/61903/3:1:3QS7-99QJ-342K?i=123&cc=2036997