Tags: Noble.
Udo was a 9th-century nobleman of East Francia a son of Gebhard Count of Lahngau and older brother of Berengar I of Neustria. He and his brother were afforded their position in the March of Neustria both by kinship to Adalard the Seneschal and the favour of Charles the Bald. With his brothers Berengar and Waldo the Abbot he took part in the 861 revolt of Carloman of Bavaria possible his cousin-in-law against Louis the German.