Jean Jourdain I of L'Isle-Jourdain

Jean Jourdain I (died 1365), second Count of L'Isle-Jourdain in Gascony, was the son of Bertrand I and Isabelle de Lévis, succeeding around 1349. On 8 July 1350 he contracted to marry Jeanne d'Albret, daughter of Lord Bernard Aiz V of Albret.