He is married to Marie Jeanne Rogier.
They got married on April 16, 1834 at Passendale, West Flanders, Belgium, he was 37 years old.Source 2
FamilySearch: Family Tree
Pierre Joseph Bossier
Birth 3 May 1796 • Moorslede, West Flanders, Belgium
Spouse Marie Jeanne Rogier
Lead confidence: 5
https://www.familysearch.org/tree/person/G4CQ-46M