Palmyra, located in the Syrian desert, is famous for the portraiture of its citizens, produced when the ancient city was at the height of its powers in the Roman era. At this time, several hundred funerary monuments were built and the Palmyrenes decorated their tombs with numerous portraits. The most common of these are the loculus reliefs that depicted Palmyra's men, women, and children, and were used to close off the niches in tombs behind which...