marrying a daughter of Quintus Aelius Tubero but Syme has rejected this, instead he believes that Lucius Seius Tubero was Junia Blaesa's son from a marriage to Quintus Aelius Tubero whom Strabo adopted upon marrying Junia.

Sejanus was later adopted into the Aelia gens, possibly by Gaius Aelius Gallus the prefect, or Sextus Aelius Catus his half-brother's half-brother,