Witnessed baptism of great-niece Barbera, who died two weeks later

Date: 
June 25, 1716

Jan Cornelis Haaxman, grandson of Leeuwenhoek's sister Margrieta, named his third daughter after Leeuwenhoek's first wife, Barbera.

Leeuwenhoek and his daughter Maria served as witnesses.

Barbera was buried two weeks later.