Caecina Mavortius Basilius Decius (fl.
He was consul and Praefectus urbi of Rome in 486 and Praetorian prefect of Italy from 486 to 493.
He had a son, Vettius Agorius Basilius Mavortius, who was consul in 527.
Decius returned to favor under the rule of Theodoric the Great, by reclaiming a portion of the Pontine Marshes at his own expense.
[2] Around 510, Decius was one of five senators appointed to investigate charges that the vir inlustris Basilius and Praetextatus had practiced black magic.