Research Notes:

The Annales Egmundani name "Othelhildis comitissa" as wife of "Theodericus comes quartus [Hollandensium]" but do not give her origin. According to Europäische Stammtafeln, the wife of Count Dirk III was the daughter of Bernhard I Markgraf der Nordmark Graf von Haldensleben, but the primary source on which this is based has not so far been identified. The Chronologia Johannes de Beke records the marriage of "Theodericus…tercius…comes Hollandie" and "Utilhildim filiam…ducis Saxonie". The corresponding duke of Saxony would have been the Billung Duke Bernhard I (who died in 1011). However, if Duke Bernhard was Othelindis's father, the wife of Count Dirk III's son Count Floris would have been his first cousin on his mother's side, which seems unlikely to be correct. "Theodericus…Holtlandensis comes…Florentii filius" recites the ownership history of properties claimed by the church of Utrecht in Holland, including donations by "Theodericus tertius, predicti Arnulfi filius, cum coniuge sua Othelhildis", by spurious charter dated 26 Jul 1083, probably written in [1130].

The Annales Egmundani record the death in 1044 of "Othilhildis comitissa". The Chronologia Johannes de Beke records that "Othilhildis…comitissa" returned to Saxony after her husband died, and that she died there "1043 VII Id Mai" and was buried there. Beke's Egmondsch Necrologium records the death "1043 VII Id Mar" of "Othelhildis comitissa rediens ad Saxoniam". ¹