PIERRE de Vendôme (-Egypt 25 Mar 1249, bur St Georges de Vendôme). "Johannes comes Vindocinensis" donated property to La Trinité de Vendôme in compensation for having built a pond at Gâtineau, with the consent of "Petri de Vindocino militis filii nostri primogeniti", by charter dated 1239[1120]. He succeeded his father as Comte de Vendôme. "Petrus comes Vindocinensis" confirmed the donation by "patris mei Iohannis bone memorie quondam comitis Vindocinensis" to the abbey of Lieu-Notre-Dame-lès-Romorantin by charter dated Jun 1248[1121]. m JEANNE de Mayenne, daughter of JUHEL [II] Sire de Mayenne & his wife Gervaise de Vitré Dame de Dinan (-11 Apr ----). Dame de la Chartre 1233. Dame de Lassay et de Château-du-Loir 1246. The necrology of Le Mans Cathedral records the death "III Id Apr" of "Johanna de Meduana, quondam comitissa Vidoeinensis"[1122]. Comte Pierre & his wife had [five] children