Jacques Tanneguy III Le Veneur 
Jacques Tanneguy III Le was born in 1670. Jacques Tanneguy III Le's father was Francois Le Veneur and his mother was Anne Favier. His paternal grandparents were Henri Le Veneur and Claude Rouault. He was an only child. He died at the age of 78 in 1748.General Notes
SOURCES: "Ancestors/Descendants of Royal Lines" (Contributors: Manuel Abranches de Soveral, Reynaud de Paysac, H.R. Moser <Burke Peerage>), O.Guionneau, L.B. de Rouge, E. Polti, A.Terlinden <Genealogy of the existing British Peerage, 1842, and E. Lodge>) http://www.geneastar.org.
They had a son named Tanneguy IV Le.