A Syro-Phænician sun-god, represented under the form of a huge conical stone. The Roman emperor, Marcus Aurelius Antoninus, was so called because in childhood he was priest of the Sun-god. Of all the Roman emperors none exceeded him in debauchery and sin. He reigned about four years (B.C. 218-222), and died at the age of eighteen. This madman invited the principal men of Rome to a banquet, and smothered them in a shower of roses.
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894