A manuscript genealogy, dated to the early 12th century, records "Letaldus comes Vesoncius et Umbertus comes Marisconensis fratres", adding "ex Umberto, Adala comitissa, ex Adala Windesmodis soror matris vestræ non german, ex Windesmode Ingelbertus et Witdo de Upione". "Ingelbertus…comes" donated property to Montiérender by charter dated [1027] "actum Breona castello" in which he names "quondam Ingelbertus comes predecessor noster", subscribed by "Adeledis comitisse, Wuarneri, Gocelmi, Guntardi, Bernard", although "Adeledis comitisse" has not been identified. It is possible that she was an earlier wife of Comte Engelbert [III]. This source does not specify that Engelbert's predecessor was his father, but the primary source which confirms his parentage has not yet been identified.
Comte de Brienne. 1035. 2
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