(1) He has/had a relationship with Maria Jacoba Eeckhout.
Child(ren):
(2) He is married to Maria Jacoba Eeckhout.
They got married in the year 1751 at Passendale, West Flanders, Belgium.Source 5
Child(ren):
FamilySearch: Family Tree
Petrus Develter
Birth Passendale, West Flanders, Belgium
Death 28 June 1758 • Passendale, West Flanders, Belgium
Spouse Maria Jacoba Eeckhout
Children August Develter • Joannes Ignatius Develter • Maria Theresia Develter
Lead confidence: 5
https://www.familysearch.org/tree/person/G7M5-RZS
gonl: GenealogieOnline
Petrus Joannes Jacobus Develter
Children Carolus Ignatius Develter
https://www.genealogieonline.nl/en/stamboom-vanduynslager/I14168.php
From FamilySearch.org
https://familysearch.org/ark:/61903/3:1:3Q9M-CS17-Y947-T?i=56&cat=295163
From FamilySearch.org
https://familysearch.org/ark:/61903/3:1:3Q9M-CS17-Y944-J?i=14&cat=295163
From FamilySearch.org
https://familysearch.org/ark:/61903/3:1:3Q9M-CS17-Y943-Z?i=102&cat=295163
From FamilySearch.org
https://familysearch.org/ark:/61903/3:1:3Q9M-CS17-Y94M-5?i=119&cat=295163