(1) He is married to Anneken van Remoertele.
Permission for the marriage has been obtained in Hontenisse on February 4, 1677.Source 1
datum: 4 feb 1677; naam bruidegom: Jan van der Necke; naam bruid: Anneken van Remoertele; scan: 23; link naar scan: https://www.familysearch.org/ark:/61903/3:1:3QS7-L9QG-2KH2?i=22&cc=2036997
(2) He is married to Marij de Keulenaar.
Permission for the marriage has been obtained in Hontenisse on May 18, 1697.Source 1
datum: 18 mei 1697; naam bruidegom: Jan van der Neck; weduwnaar van: Anneke van Remorter; naam bruid: Marij de Keulenaar; scan: 40; link naar scan: https://www.familysearch.org/ark:/61903/3:1:3QS7-89QJ-34BD?i=39&cc=2036997