FI

Frederick I Duke of Upper Lotharingia

Vitals

Born
c. 912
Died
978

Family

Parents
WC
Wigerich Count Palatine
bur. Sainte-Glossinde
CP
Cunigonde (Count Palatine)
Siblings
GC
Gozlin Count in the Ardennes
Spouse
BO
Beatrice of France
d. 1003
Children
TI
Thierry I Duke of Upper Lotharingia
d. 1027

Research notes

✓ Frederick I, Duke of Upper Lotharingia (Duke of the Moselle) (b. [910/15], d. 978), brother of Adalberon, Bishop of Metz; son of Wigerich, Count Palatine, and Cunigonde (deduced from Otto I's charter of 960 naming 'Adalbero... germano suo Friderico duce'); founder of Bar. m. 954 Beatrice, daughter of Hugh the Great (Flodoard). His parents not wired (Cunigonde's Carolingian descent is debated). Source: Medieval Lands (fmg.ac, Cawley), 'Lotharingia'. [DIRECT ANCESTOR OF THE COMPILER: flag added 22 Oct 2026 by walking the tree from Aynsley, so that this marker is reliable and can be searched.] UPDATE 25 Oct 2026: parents Wigerich x Cunigonde wired ✓ (Otto I's charter of 960 'Adalbero... germano suo Friderico duce' with Charles III's charter of c.915 naming Adalbero's parents). Siegfried of Luxembourg is his (half-)brother.

Death: Jun/Jul 978

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