Sex. Pompeius - Monetalis of Res Publica Romana from 137 BC to 137 BC
Sex. Pompeius was one of the moneyers for the year 137 BC. He is probably identical to Sextus Pompeius, Praetor in 119 BC and the father of Cn. Pompeius Strabo, which is to say that he was the grandfather of Pompey the Great.

Gens Pompeia was a plebeian family at ancient Rome, first appearing in history during the second century BC, and frequently occupying the highest offices of the Roman state from then until imperial times. The first of the Pompeii to obtain the consulship was Quintus Pompeius in 141 BC, but by far the most illustrious of the gens was Gnaeus Pompeius, surnamed Magnus, a distinguished general under the dictator Sulla, who became a member of the First Triumvirate, together with Caesar and Crassus.

The nomen Pompeius (frequently anglicized as Pompey) is generally believed to be derived from the Oscan praenomen Pompo, equivalent to the Latin Quintus, and thus a patronymic surname. The gentilicia Pompilius and Pomponius, with which Pompeius is frequently confounded, were also derived from Pompo. The gentile-forming suffix -eius was typical of Sabine families, suggesting that the Pompeii were of Sabine or Oscan extraction.
Sex. Pompeius
Moneyer Sex. Pompeius of the Roman Republic