praefectus urbi in A. D. 222, was torn to pieces, along with Aurelius Eubulus [EUBULUS], by the soldiers and people, in the massacre which followed the death of Elagabalus, and was succeeded in office by the notorious Eutychianus Comazon. He is perhaps the same person with the consular, Fulvius Diogenianus [DIOGENIANUS], whose rash exclamation, on hearing the letter addressed by Macrinus to the senate, has been commemorated by Dio Cassius. (D. C. 78.36, 79.21.)