Ulpian was born in 170.

Ulpian died in 228.

He was a Roman jurist who has left a series of legal dissertations and opinions - part of the overal Roman law code contributed to by a range of jurists.

It was the jurists, who wrote treatises on points of law. The two most famous ones were Gaius and Ulpian.

Trajan's father was Marcus Ulpius Traianus, a prominent senator from the gens Ulpia (Ulpian clan) which settled in Spain in the late 3rd century BC. His mother was Marcia who came from a noble and politically influential family, the gens Marcia, and was the daughter of the senator Quintus Marcius Barea Sura.