Events
Date of Birth: unknown.
Place of Birth: unknown.
Date of Death: after 929.
Place of Death: unknown.
The date is given by Baldwin.
Relationships
Father: unknown.
Beumann and Baldwin both note that Dietrich was a descendant of Widukind, an 8th century Saxon leader.
Mother: Mathilde, abbess of Herford.
Baldwin discusses parents falsely attributed to her.
Spouse: Reinhild.
Although Reinhild was stated to be of Danish-Frisian descent, Baldwin notes that there is no good evidence that her father was the Danish king Godefrid (died 885), as is often stated.
Children:
(Complete source citations for facts about the children on this page are currently outside of the scope of this project. Most information below comes from Baldwin.)
Mathilde (died 14 March 968) married Heinrich I, king of Germany.
Bia (died 25 May, between 929 and 932).
Friderun (died about 11 January 971) married an unknown count.
Amalrada married Eberhard, count of Hamaland.
a daughter married Wichmann (died 944), count in Saxony.
(probably) Bertheid (possibly the same as the daughter who married Wichmann).
References
Baldwin, Stewart. “Dietrich” in The Henry Project. (2011)
Beumann, Helmut. “Heinrich I.”, in Neue Deutsche Biographie 8 (1969), S. 307-310 [Onlinefassung].