Herennius Modestinus
Herennius Modestinus, or simply Modestinus, was a civil servant and a celebrated Roman jurist, a student of Ulpian who flourished about 250 AD. He appears to have been a native of one of the Greek-speaking provinces, or probably Dalmatia. Possibly from 223 to 225 AD he was secretary a libellis under Emperor Alexander Severus, and about 228 he was praefectus vigilum.