Antoine de Laloubère
Antoine de Laloubère, also Lalouvère and other forms, (24 August 1600 – 2 September 1664), a Jesuit, born in Languedoc (Rieux-Volvestre, where his family had a castle), is chiefly known for an incorrect solution of Pascal's problems on the cycloid, which he gave in 1660, but he has a better claim to distinction in having been the first mathematician to study the properties of the helix.