Wikipedia article of the day is Portraits of Odaenathus. Check it out:
Article-Link Summary: Portraits of Odaenathus, the king of Palmyra from 260 to 267 CE, include sculptures, seal impressions, and mosaic pieces. As a client king for Rome, Odaenathus came to dominate the Roman East after defeating Shapur I of Persia in 260 and assuming the title King of Kings. Several limestone head portraits from Palmyra were identified by twentieth-century scholars as depicting Odaenathus, based on criteria such as the size and the presence of a wreath, but more recent research indicates that these pieces were probably funerary objects depicting private citizens. Two marble heads, both reflecting a high level of individuality, depicting Eastern royal attributes such as the tiara and diadem, are more likely to be portraits of the king. Also, two Palmyrene tesserae (example pictured) bear a probable depiction of the king, bearded and wearing a diadem and an earring. In addition, Odaenathus is likely the subject of two mosaic panels glorifying his victories.