ROBERT [III] de Vitré, son of ROBERT [II] Seigneur de Vitré & his wife Emma de la Guerche (-11 Nov 1173). The primary source which confirms his parentage has not yet been identified. Seigneur de Vitré. "Robertus dominus Vitreii" donated property to Sauvigny, with the consent of "Andrea filio meo et Emma uxore mea", for the souls of “...fratris mei Andreæ”, by charter dated 28 Mar 1160[1815]. "Robertus dominus Vitreii" granted property to Sauvigny with the consent of "Andrea filio meo et Emma matre mea et Emma uxore mea" by charter dated 1 Apr 1161[1816]. The Chronicon Savigniacense records the death "in festo hyemali sancti Martini" in 1173 of "Robertus de Vitreio tertius"[1817].
m as her second husband, EMMA de Dinan, widow of HUGUES d´Alluie, daughter of ALAIN de Dinan & his wife --- (-after 7 Nov 1202). "Robertus dominus Vitreii" donated property to Sauvigny, with the consent of "Andrea filio meo et Emma uxore mea", for the souls of “...fratris mei Andreæ”, by charter dated 28 Mar 1160[1818]. "Robertus dominus Vitreii" granted property to Sauvigny with the consent of "Andrea filio meo et Emma matre mea et Emma uxore mea" by charter dated 1 Apr 1161[1819]. Her origin is confirmed by Robert of Torigny who records the death in 1173 of "Robertus de Vitreio" and the succession of "filius suus Andreas natus ex sorore Rolandi de Dinan"[1820]. Her first marriage is confirmed by the charter dated to [1155/73] under which "Emma de Vitreio" confirmed a donation of property to the priory of Sainte-Croix de Vitré by "Hugonis de Aleia…tunc maritus meus", with the consent of "filio meo Johanni", by charter dated to [1155/73][1821]. "Andreas dominus Vitrei" granted property to Sauvigny for the soul of "patris mei Roberti et matris mee Emma et uxoris mee Matildis" by undated charter[1822]. An order of King John dated 7 Nov 1202 granted safe passage for a visit to "Andr de Vitreio et Emme matris sue"[1823].
Robert de Vitré & his wife had six children