| Baptism* | Pierre Jacques dit Sansoucy was baptized on 19 June 1710 at Pointe-aux-Trembles, Montréal, QC, CAN. |
| Birth | He was born before 19 June 1710 at Côte St Léonard, Montréal, QC, CAN. |
| He was the son of Guillaume Jacques dit Langlais and Catherine Limousin dit Beaufort. |
| Marriage* | Pierre Jacques dit Sansoucy married Marie Lalongé on 21 April 1738 at Rivière des Prairies, Montréal, QC, CAN; Pierre uses his father Guillaume's dit name Langlois iin this marriage record. |
| Marriage* | Pierre Jacques dit Sansoucy married Madeleine Simon on 4 August 1744 at St Francois d'Assise-de-Longue-Pointe, Montréal, QC, CAN. |
