Étienne d'Espagnet

Étienne d'Espagnet (born c. 1596) was the son of parliamentary counselor Jean d'Espagnet and Charlotte De Mangeau. He became a parliamentary counselor in 1617. 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.[3]


  1. ^ Jean d' Espagnet (1999). Jean D'Espagnet's the Summary of Physics Restored: The 1651 Translation with D'Espagnet's Arcanum (1650). Taylor & Francis. pp. 14–15. ISBN 978-0-8240-7542-2.
  2. ^ http://www-history.mcs.st-andrews.ac.uk/Biographies/Beaugrand.html
  3. ^ Michael Sean Mahoney (1994). The Mathematical Career of Pierre de Fermat, 1601-1665. Princeton University Press. pp. 49–. ISBN 0-691-03666-7.