Hadrian next adopted Titus Aurelius Fulvus Boionius Arrius Antoninus (the future emperor Antoninus Pius), who had served Hadrian as one of the five imperial legates of Italy, and as proconsul of Asia. In the interests of dynastic stability, Hadrian required that Antoninus adopt both Lucius Ceionius Commodus (son of the deceased Aelius Caesar) and Marcus Annius Verus (grandson of an influential senator of the same name who had been Hadrian's close friend); Annius was already betrothed to Aelius Caesar's daughter Ceionia Fabia. It may not have been Hadrian, but rather Antoninus Pius – Annius Verus's uncle – who supported Annius Verus' advancement; the latter's divorce of Ceionia Fabia and subsequent marriage to Antoninus' daughter Annia Faustina points in the same direction. When he eventually became Emperor, Marcus Aurelius would co-opt Ceionius Commodus as his co-Emperor, under the name of Lucius Verus, on his own initiative.