- Born on March 2, 1666 in Roscoff
- Deceased on April 29, 1746 in Plouguerneau, at the age of 80 years
Parents
- Olivier Le Mercier (1637 - 1683), écuyer, seigneur de Kerléoret
- Marguerite de Lesne ( - 1672)
Family
- Married on October 28, 1688 in Plouguerneau, with François Gilles de Poulpiquet (c. 1668 - 1743), écuyer, seigneur de Tredern, issuing
François Michel (1699 - 1781)