Lothair Udo I, Count of Stade

Lothair Udo I (950 – 23 June 994) was count of Stade. He was the son of Count Henry the Bald and his wife Judith of the Wetterau, granddaughter of Duke Gebhard of Lorraine. Lothair is frequently confused with his nephew Lothair Udo II, son of his brother Siegfried II, who was margrave of Nordmark as Lothair Udo I.

The writings of Thietmar of Merseburg describe the deaths of his three maternal uncles Henry, Udo [Lothair Udo I] and Siegfried, captured by pirates with Count Adalgar, and reported that Udo was killed in battle with the Vikings.

Lothair married a daughter of Count Siegbert of Liesgau, and had two children: Henry III, canon at Hildesheim Cathedral, after 1002 Udo (986-1040), count of Liesgau and Rittegau, married to Bertrada of an unknown family. Their son Dietrich I of Kahleberg was killed in the Battle of Werben on 10 September 1056. Dietrich married Bertrada, daughter of Count Dirk III of Holland.