De Cossat N... (3028)
 | Rouanne Barbe (3029)
 | | | | | | | | | | | Harlaut Charles (2994) 1628 - ?
 | Collumeau Jacquette (2995) 1630 - 1695
 | | |
| | | | | | | | | | | | | | | |
| | | | | | | |
De Cossat Jean (1514) 1628 - 1693
 | Chaufroit Jacqueline (1515) 1629 - 1710
 | | | | | Harlaut Mathieu 1671 - ?
 | Houy Marie
 |
| | | | | | | |
| | | |
De Cossat Claude 1667 - 1725
 | Bellier Gabrielle 1669 - 1733
 | Duguay Jacques ? - 1696
 | Harlaut Marie 1696 - 1730
 |
| | | |
| |
Cossat Joseph 1708 - 1775
 | Duguay Marie Hélène 1719 - 1772
 |
| |
|
Cossat Jean (1745 - ?) |