Richilde is named with her husband in 992[135]. Her origin is unknown but she may have been Richilde [von Bliesgau], daughter of Folmar Graf von Bliesgau & his wife Berthe ---. This origin is suggested by the charter dated 1076 under which Pibon Bishop of Toul granted privileges to the priory of Laître sous Amance, founded by "comitissæ Sophiæ", in which she declared that the castle of Amance belonged to "Theodericus dux, comitissæ avus" who had inherited it from "comiti Folmaro in Asmantia"[136]. The reference would be explained if Folmar had been Duke Thierry's father-in-law.
Children
Frederic II of Upper Lotharingia (sometimes called FREDERIC II of Upper Lotharingia but thus may be wrong). Born between 997-999.
Adalbero of Upper Lotharingia. Born about 1000. He was appointed as a child Bishop of Metz end 1005, in succession to his uncle Bishop Adalbero [II], under the guardianship of Thierry de Luxembourg. He died young as a child on 24 March sometime after 1006.
Adelais of Upper Lotharingia. She was born between 995 and 1015. She married Waleran [I] Comte d'Arlon,