He is married to Hidda von Meissen.
They got married
Child(ren):
CHRISTIAN, son of --- (-after 945, maybe 961). "Gysalbertus dux rectorque S. Traiectenses ecclesie" donated property "Gulisam…in pago [Ardunensi] in comitatu Everhardi" to Trier by charter dated 928, subscribed by "Walgeri comitis, Thiedrici comitis, Cristiani comitis, Folcoldi comitis"[53]. Markgraf. The Chronicon Montis Serreni names "Cristiano marchione" as husband of "Hidda"[54]. "Otto…rex" granted property "in pago Nordthuringia in comitatu Thietmari in Magedeburg…in comitatu Geronis in Bigera…in comitatu Crhistiani in Grimhereslebu" for the foundation of Magdeburg by charter dated 21 Sep 937, and other property "in pago Nordthuringa in comitatu Cristiani in Grimersleba" by charter dated 11 Oct 937[55]. Graf im Nordthüringau. "Otto…rex" granted property in "pago Seromunti in comitatu eiusdem Cristani" to "nostro marchioni…Cristan" by charter dated 1 May 945[56]. "Otto…rex" donated property "inter Sclavos prope fluvium Fona…in pago Serimuntilante in comitatu Cristani comitis" to "nostri fidelis vassalli Fridurici filiis, Folcmaro…et Richberto" by charter dated 11 Jun 945[57]. "Otto…rex" granted property "Hebesheim in pago Derlingum in comitatu Brunonis" to Moritzkirche, Magdeburg by undated charter, but dated to [951/57] as it names "coniugis nostræ Aelheidis…filii nostri Liudolfi", in the presence of "eiusdem Brunonis comitis filiique Liudolfi, Geronis marchionis, Cristiani comitis nec non Liutharii et Friderici comitum" [58]. Thietmar records that "Count Christian" was buried at Magdeburg[59]. Part of the same passage refers to 961 but it is not possible from the context to conclude that Christian certainly died in that year.
m HIDDA, daughter of Graf THIETMAR [I] & his wife --- (-Jerusalem [945/75]). "Soror eorum [Gero marchiorum et Sigefridus] Hidda nominee" is named in the Annalista Saxo, which records her death in Jerusalem and that she was the mother of "Thietmarum marchionem et Geronem Coloniensem archiepiscopum"[60]. Thietmar also records the death in Jerusalem of "Gero's holy mother Hidda", undated but in a passage which records the subsequent invasion of Jerusalem by the Saracens implying that this occurred immediately after her burial[61]. She founded Kloster Nienburg with her sons Thietmar and Gero after her husband died[62].
Markgraf Christian & his wife had [three] children:
THIETMAR [III] ([925/30]-3 Aug after 979, bur Kloster Nienburg an der Saale)
GERO (-29 Jun 976, bur Köln Cathedral).
HODO [Odo] (-13 Mar 993, bur Kloster Nienburg an der Saale
Bronnen:
[53] Beyer, H. (ed.) (1860) Urkundenbuch zur Geschichte der, jetzt die Preussischen Regierungsbezirke Coblenz und Trier bildenden Mittelrheinischen Territorien (Coblenz), Vol. I, (“Mittelrheinisches Urkundenbuch I”), 169, p. 233.
[54] Chronicon Montis Serreni 1171, MGH SS XXIII, p. 153.
[55] D O I 14, and D O I 16, pp. 101 and 103.
[56] D O I 64, p. 145.
[57] D O I 69, p. 149.
[58] D O I 56, p. 138.
[59] Thietmar 2.17, p. 104.
[60] Annalista Saxo 965.
[61] Thietmar 2.25, p. 110.
[62] Schölkopf, R. (1957) Die Sächsische Grafen 919-1024, Studien und Vorarbeiten zum Historischen Atlas Niedersachsens, 22 (Göttingen) p. 45, cited in Jackman (1997), p. 143 footnote 12.
https://fmg.ac/Projects/MedLands/MEISSEN.htm#Christiandiedafter945