- Born on December 20, 1709 in Ghent
- Deceased on November 12, 1781, at the age of 71 years
Parents
- Claude Nicolas de Saint-Genois (1672 - ), baron de Saint-Genois
- Angélique van den Dendere ( - 1734)
Family
- Married with Marie Catherine de Lanfranchy (1720 - 1777), issuing
- Bernard (1749 - 1810)