(1) He is married to Anna de Dave.
Permission for the marriage has been obtained in Hontenisse on June 2, 1663.Source 1
datum: 2 jun 1663; naam bruidegom: Guliaam du Pouq; naam bruid: Anna de Dave; scan: 46; link naar scan: https://www.familysearch.org/ark:/61903/3:1:3QS7-89QG-2KSX?i=45&cc=2036997
(2) He is married to Maria van den Berghe.
Permission for the marriage has been obtained in Hontenisse on January 28, 1668.Source 1
datum: 28 jan 1668; naam bruidegom: Guliaam du Pou; weduwnaar van: Anneken de Dave; naam bruid: Maria van den Berghe; weduwe van: Jan de Paap; scan: 56; link naar scan: https://www.familysearch.org/ark:/61903/3:1:3QS7-L9QG-2K8J?i=55&cc=2036997