Her parentage and marriage are confirmed by Ekkehard who names "duo fratres Aerbo…et Boto paterno de sanguine Noricæ gentis…Hartwici palatini comitis filii…maternum…stemma de Saxonia Immidingorum tribus…mater a Retingo filio Botonis filii Retingi de secundo Botone nati procreatur", when recording the death of her son "Boto comes cognomento fortis Aerbonis…germanus". She is named as wife of Pfalzgraf Hartwig in Europäische Stammtafeln. The primary source which confirms her name has not yet been identified. 1
Marriage Information:
Frederuna married Hartwig II VON BAYERN, Count Palatine of Bavaria, son of Aribo I VON BAYERN, Count Palatine of Bavaria, and Adela VON BAYERN. (Hartwig II VON BAYERN was born in Bayern and died on 24 Dec 1024.)
Sources
1 Foundation for Medieval Genealogy, Medlands: Frederuna.
Research Notes: