Titus Pomponius was a member of the Gens Pomponia and a direct descendant in male line of Pomponius, the first son of Numa Pompilius, the second King of Rome, and came from an old but not strictly noble Roman family of the equestrian class. He was the owner of an excellent library in his house at the Appian Way, lord of a great fortune, partner of many companies of publicans and of important companies of fishing and conserves in Gades, in Hispania, and of great properties in Illyricum. Wikipedia