Herennius Modestinus

[1] Possibly from 223 to 225 AD he was secretary a libellis under Emperor Alexander Severus, and about 228 he was praefectus vigilum.

[2] In Valentinian's Law of Citations he is classed with Papinian, Paulus, Gaius and Ulpian,[1] as one of the five jurists whose recorded views were considered decisive.

He is considered to be the last great jurist of the classic age of Roman law.

No fewer than 345 passages in the Digest of the Corpus Juris Civilis are taken from his writings.

[1] He is the author of a collection of Responsa and Digesta written in 12 books.