Géraud IV of Armagnac

Géraud IV, nicknamed Trencaléon (c. 1170–1215), was Count of Armagnac and Fézensac from 1193, the long-awaited son of Bernard IV. In 1202 King John of England granted him lands in Gascony. During the Albigensian Crusade he did homage to Simon de Montfort for his counties and in 1213 joined the siege of Toulouse.

He died childless in 1215, having adopted his cousin Géraud V de Lomagne, who succeeded him and began the second House of Armagnac.