Cozette, cure.
[Illustration: ACT OF BIRTH] Of Lamarck's parentage and ancestry there are fortunately some traces.
In the _Registre aux Actes de Bapteme pour l'Annee 1702_, still preserved in the _mairie_ of Bazentin-le-Petit, the record shows that his father was born in February, 1702, at Bazentin.

The infant was baptised February 16, 1702, the permission to the _cure_ by Henry, Bishop of Amiens, having been signed February 3, 1702.

Lamarck's grandparents were, according to this certificate of baptism, Messire Philippe de Monet de Lamarck, Ecuyer, Seigneur des Bazentin, and Dame Magdeleine de Lyonne.
The family of Lamarck, as stated by H.Masson,[3] notwithstanding his northern and almost Germanic name of Chevalier de Lamarck, originated in the southwest of France.

Though born at Bazentin, in old Picardy, it is not less true that he descended on the paternal side from an ancient house of Bearn, whose patrimony was very modest.

This house was that of Monet.
Another genealogist, Baron C.de Cauna,[4] tells us that there is no doubt that the family of Monet in Bigorre[5] was divided.