Magister Gregorius, De Mirabilibus 24, VZ 3.161 (ca. mid-twelfth century A.D.): Est etiam arcus triumphalis Magni Pompeii, ualde mirandus, quem habuit de victoria quam obtinuit uicto Metridate et filio eius Pharoace. Hi Romanis per .xl. annos rebelles fuerunt. Qui ad ultimum pirates eeffecti Sillam contra eos missum superauerunt et in fugam conuerterunt. Ad quos postmodum missus Pompeius ante mensem ultra spem Romanorum felici usus fortuna memoratum Metridatem cum filio suo et copiis omnino deuicit. Postea autem antequam Romam redisset, magnam partem orientis deuicit et Romanis tributarios effecit. Ubi inmensum pondus auri et argenti quesiuit: quod longo ordine Pompeiano triumpho prelatum est. Quod sculptura arcus triumphalis eius usque in hodiernum diem representat. There is also a wonderful triumphal arch of Magnus Pompeius, which he built for the victory celebrated after his defeat of Mithridates and his son Pharnaces. These two had fought against the Romans for 40 years. They were pirates to the end and defeated Sulla, who had been sent out to deal with them, sending him packing. Pompeius was sent shortly thereafter, and beyond expectation of the Romans, aided by good fortune, he completely crushed the famous Mithridates, as well as his son and their army before a month had passed. Before returning to Rome, he subjugated a large part of the East and required it to pay tribute to the Romans. He also acquired an enormous amount of gold and silver, which was displayed in a long procession at his triumph. The reliefs on his triumphal arch depict these events to the present day.  (J. Osborne, trans.)