"Domna Berta, viri illustris Volcmari comitis relicta" donated property "in pago Moselensi in comitatu Waldeleuinga cui Gisilbertus comes…villa Mudenfert" to St Maximin, Trier by charter dated 996 witnessed by "Friderich comes". Herimannus names "Theoderico Metense episcopo et Heinrico Baioriæ duce Fridericoque comite" as brothers of "Adalbero clericus, reginæ Cunigundis germanus", when recording their rebellion against Emperor Heinrich II in 1008.
The Annales Quedlinburgenses record the death in 1019 of "Fridericus, frater Cunigundæ imperatricis".
Graf im Moselgau. Vogt of Stablo and Malmédy 1
Also known as Friedrich I VON LUXEMBURG.