A charter dated [10 Feb/23 Jul] 1143 records that "Richardus de Monte Falconis…et filius eius Amedeus" had returned the prévôté de Cirey to Humbert Archbishop of Besançon so he could donate it to Bellevaux abbey. "Richardus de Montefalconis" donated property to the abbey of Cherlieu, with the consent of "Amedeus filius eius…Girardi Fontisvenne", by charter dated 1148, before Apr. A charter dated 14 Jul 1148 records the confirmation of the donation by "dominus Richardus de Montefalchonis" to Besançon Saint-Etienne for the soul of "conjugis", with the consent of "filio eius Teodorico, ipsius ecclesiæ canonico…Amadeus et Raynaldus filii ipsius Richardi…filiæ ipsius uxor domini Gerardi de Fontevennæ et Stephania". "Dominus Richardus de Montefalconis…et filius eius Amedeus" donated property to the abbey of Lieucroissant, with the consent of "filii sui Raynaldi", by charter dated .
He succeeded his maternal grandfather as Comte de Montbéliard in 1163. "Amedeus comes Montis Beligardis" donated property to the abbey of Belchamp, for the soul of "Ermentrudis materteræ suæ comitissæ de Rupe", with the consent of "filio suo Ricardo", by charter dated 1171, witnessed by "…Oto comes de Rupe præfate comitisse sponsus…".
The Annales Marbacenses record that "Hamideus comes de Montebeligardis" was killed in Spring 1195 by "Ottone fratre imperatoris" [Othon Comte Palatin de Bourgogne]. 1