Emperor Wu: Did you mean...?

Emperor Xuanzong (r. 712-756 CE) of the Tang Dynasty.

A 7th century CE silk scroll with a portrait of Chinese emperor Yangdi (aka Yang) of the Sui dynasty. R. 604-618 CE. (Museum of Fine Arts, Boston, USA)

A silk scroll portrait of the Yongle Emperor (aka Chengzu or Yung Lo, r. 1403-1424 CE) who was the third ruler of the Chinese Ming Dynasty (1368-1644 CE). (National Palace Museum, Taibei)

A portrait of Japan's Emperor Go-Horikawa, r. 1221-1232 CE. Artist: Fujiwara no Tamenobu. From the Tenshi-Sekkan Miei. (Museum of the Imperial Collections, Tokyo)

Bust of Roman Emperor Claudius II, r. 268-270 CE. (Santa Giulia Museum, Brescia)

Portrait of Charles V, Holy Roman Emperor (1500-1558), line engraving on paper by Barthel Berham. Scottish National Portrait Gallery, Edinburgh.

Bust of Roman emperor Domitian (r. 81-96 CE), originally part of a colossal statue. Ephesus Archaeological Museum. Selçuk, Turkey. 1st Century CE.

Engraved portrait of Kings of East Francia Charles the Fat (r. 876-887 CE), Holy Roman Emperor (r. 881-887 CE), and Louis III the Younger (r. 876-882 CE), by unknown creator, c. 1634-1643 CE. The British Museum, London.

Gold coin depicting Emperor Zeno (474-491 CE), minted in Constantinople. British Museum

A painted silk scroll portrait of the Jianwen Emperor (r. 1398-1402 CE), the second ruler of the Chinese Ming dynasty (1368-1644 CE).