Armilus

Armilus (ארמילוס) (also spelled Armilos and Armilius) is an anti-messiah figure in medieval Jewish eschatology who will conquer the whole Earth, centralizing in Jerusalem and persecuting the Jewish believers until his final defeat at the hands of the Jewish Messiah. His believed destruction symbolizes the ultimate victory of the Jewish Messiah in the Messianic Age.

Name
The name might be derived from that of Romulus, one of the founders of Rome, or from Ahriman, the evil principle in Zoroastrianism (Angra Mainyu).

Appearance
Midrash Vayosha depicts Armilus as bald, partially deaf, partially maimed, and partially leprous.