The Genealogica ex Stirpe Sancti Arnulfi names "Hadewidem et Emmam de Los" as the two daughters of "Ermengardis [filiæ Karoli ducis]" and as mother of "Theodericum ducem et Gerardum comitem fratres". It is likely that Hedwig was born during that latter part of the married life of her parents, given her own death in [1080] and her father's death before 1010. The Liber Memoriales of Remiremont records the donation of "Haduydis ducissa…consentientibus filiis suis duce Teoderico atque comite Girardo".
"Hadewidis ductrix" founded the abbey of Châtenois by charter dated to after 1075, confirmed "post obitum ductricis Hadewidis" by "dux Theodericus filius eius". 2