Ceionia gens
Roman gens

The gens Ceionia or gens Caeionia or the Caeionii family was an ancient Roman senatorial family of imperial times. The first member of the gens to obtain the consulship was Lucius Ceionius Commodus in AD 78. The rise of this family culminated in the elevation of the emperor Lucius Verus, born Lucius Ceionius Commodus, in AD 161.
Origin
The Ceionii were probably of Etruscan origin. Their nomen resembles other Etruscan names, such as Cilnius, and the family does not appear in history before the first century. The historian Aelius Spartianus wrote that they came from Etruria, or perhaps from the town of Faventia, which was itself of Etruscan origin.
Praenomina
The praenomina used by the Ceionii were Lucius, Gaius, and Marcus.
Branches and cognomina
The most illustrious family of the Ceionii bore the cognomen Commodus, meaning "friendly, obliging," or "pleasant." The agnomen Verus, meaning "true", was borne by some members of this family. Many other surnames occur, some of which were ordinary cognomina, such as Rufus, meaning "red" or "reddish," or Bassus, "stout". However, as with many families of imperial times, many surnames were acquired from other families to whom the Ceionii were related or otherwise politically connected.
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