Antigonus sent against the Nabataeans in 312 BC, was understood by some researchers – and not so by others – to throw some light upon the history of Petra, but the "petra" (Greek for rock) referred to as a natural fortress and place of refuge cannot be a proper name, and the description implies that there was no town in existence there at the time. Roman period In AD 106, when Cornelius Palma was governor of Syria, the part of Arabia under the rule of Petra was absorbed into the Roman Empire as part of Arabia Petraea, and Petra became its capital. The native dynasty came to an end but the city continued to flourish under Roman rule. It was around this time that the Petra Roman Road was built. A century later, in the time of Alexander Severus, when the city was at the height of its splendor, the issue of coinage came to an end. There was no more building of sumptuous tombs, owing apparently to some sudden catastrophe, such as an invasion by the neo-Persian power under the Sassanid Empire. Meanwhile, as Palmyra (fl. 130–270) grew in importance and attracted the Arabian trade away from Petra, the latter declined. It appears, however, to have lingered on as a religious center. Another Roman road was constructed at the site. Epiphanius of Salamis (c.315–403) writes that in his time a feast was held there on December 25 in honor of the virgin Khaabou (Chaabou) and her offspring Dushara. Dushara and al-Uzza were two of the main deities of the city, which otherwise included many idols from other Nabataean deities such as Allat and Manat. Between 111 and 114 Trajan built the Via Traiana Nova, running from the Syrian border to the Red Sea through Petra. This road followed the old routes of Nabataean caravans. In the shadow of the Pax Romana, this route revived trade between Arabia, Syria, and Mediterranean harbors. In 125 AD, one of Emperor Hadrian's administrators left marks in Petra, pointed out by documents found at the Dead Sea. In 130 AD, Hadrian visited the former Nabataean capital, giving it the name of Hadriānī Petra Metropolis, imprinted on his coins. His visit, however, did not lead to any boom in development and new buildings as it did in Jerash. The province's governor, Sextius Florentinus, erected a monumental mausoleum for his son near the end of the