Ubii

thumb|right|350px|The Ubii around AD 30 thumb|right|200px|Fannius, a member of the Ubii, corporis custos, the Germanic bodyguard of [[Nero, Museo Epigrafico, Terme di Diocleziano, Rome]]

The Ubii were a Germanic tribe first encountered dwelling on the east bank of the Rhine in the time of Julius Caesar, who formed an alliance with them in 55 BC in order to launch attacks across the river. They were transported in 39 BC by Marcus Vipsanius Agrippa to the west bank, apparently at their own request, as they feared the incursions of their neighbors, the Chatti.