Lucius Aelius Caesar (13 January 101 – 1 January 138) was the father of Emperor Lucius Verus. In 136, he was adopted by the reigning emperor Hadrian and named heir to the throne. He died before Hadrian and thus never became emperor. After Lucius' death, he was replaced by Antoninus Pius, who succeeded Hadrian the same year.
Aelius was born Lucius Ceionius Commodus, and became Lucius Aelius Caesar upon his adoption as Hadrian's heir. He is sometimes referred to as Lucius Aelius Verus, though this name is not attested outside the Historia Augusta, where it probably was originally the result of a manuscript error. The young Lucius Ceionius Commodus was of the gens Ceionia. His father, also named Lucius Ceionius Commodus (the Historia Augusta adds the cognomen Verus), was consul in 106 and his paternal grandfather, also of the same name, was consul in 78. His paternal ancestors were from Etruria, and were of consular rank. His mother is surmised to have been an undocumented Roman woman named Plautia.[1] The Historia Augusta states that his maternal grandfather and his maternal ancestors were of consular rank.