JEAN [V] de Vendôme, son of BOUCHARD [V] Comte de Vendôme & his wife Marie de Roye (-after 18 May 1315). He succeeded his father as Comte de Vendôme.
m ([15 May 1295/28 Feb 1302]) ELEONORE de Montfort dame de Castres-en-Albigeois et de la Ferté-Aleps, daughter of PHILIPPE de Montfort-l'Amaury & his wife Jeanne de Levis (-after 18 May 1338, bur Castres). A charter dated 15 May 1295 included in the cartulary of Notre-Dame de la Roche records the partition of property of Montfort and Castro, agreed by "Joannes de Monteforti comes Squllacii et Montis-Caviosi ac regni Siciliæ camerarius, Bernardus de Convenis miles…et domicella Elienore de Monteforti" which names their parents "bonæ memoriæ D Philippi de Monteforti patris et D Joannæ de Leviers matris nostrum predictorum Joannis, Lauræ et Elienoris"[1134]. A fragment written by Bernard Guidonis records the presence of "domina Helyonorda de Monte Forti...comitissa Vindocinensis cum tribus filiis suis, soror et heres præfati domini Johannis de Monte Forti" at the reburial of the body of the latter at Castres in 1305[1135]. The necrology of Port-Royal records the donation in 1314 by "dame Alienor de Montfort comtesse de Vendosme" for "son…filz Buchard comte de Vendosme le premier né"[1136].
Comte Jean [V] & his wife had four children