| | Claudia le Fourn 1649–1694 | | |
| | Claude le Fourn 1650–1721 Françoise Rolland 1652–1685 | | |
| | François le Fourn 1657–1706 | | |
| | Marguerite le Fourn 1659–1722 Gabriel Pallier 1669–1725 | | |
Prigent le Fourn 1661–1679 | | |
| | François le Fourn 1619–1683 | | |
Jean François de Lesguen – | | |
| | Catherine Golias 1583–1663 | | |
| | Marguerite de Touronce 1560– | | |
| | | | | | Guillaume IV de Lesguen – Eliette de Saint-Goueznou – | | | | | | | | Guillaume III de Lesguen – | | | | Guillaume II de Lesguen 1380– | | |
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| | | Perceval de Saint-Goueznou 1443–1522 Isabelle de Keribert 1475–1564 | | | | Perceval de Saint-Goueznou 1415–1496 Azénore de Kermorvan 1420–1497 | | | | Hervé de Kermorvan 1392–1470 Marguerite de Kerscao 1400–1465 | | |
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