Étienne d'Espagnet (born c. 1596) was the son of parliamentary counselor Jean d'Espagnet and Charlotte De Mangeau.
He married in 1629 and had a son in 1634.
[1] He was friends with Viète and Fermat.
[2] d'Espagnet shared mathematical interest with Fermat and was the recipient of at least some of Fermat's mathematical papers.
This article about a Gironde politician is a stub.