Olimpe Joseph de Coëtnempren
- Born on May 13, 1709 in Plounéventer, at château de Brézal
- Baptized in La Roche-Maurice, at Pont-Christ
Parents
- Jacques III de Coëtnempren (c. 1665 - 1734), écuyer, seigneur de Kersaint
- Yvonne-Catherine de Pentrez (1675 - ), dame de Bodennec