Simon Duke of Lorraine married "his stepmother's daughter whom she had by her first husband Graf Heinrich". In light of the chronological difficulties of this having been a daughter of Duke Thierry II's first wife, it is likely that Duke Simon's wife was the daughter of the comte de Louvain, whose wife married Duke Thierry as his second wife. “Simon...Lotharingorum dux” renounced claims over property of “ecclesia de Sancti-Remigii-Monte”, brought by “patris mei beatæ memoriæ ducis Theodorici”, with the support of “uxore mea...ducissa Adelide...cum Matthæo...unico nostro filio”, by undated charter. Her name is confirmed by the charter dated 1155, after 1 Sep, under which "Judit Romaricensis ecclesie abbatissa" donated property at the request of "Aledis mater ducis Mathei".
After the death of her husband, Adelaide retired to the Cistercian abbey of Notre-Dame du Tart, near Dijon. 1
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