ALYPIUS OF ANTIOCH, a geographer of the 4th century, who
was sent by the emperor Julian into Britain as first prefect,
and was afterwards commissioned to rebuild the temple of
Jerusalem. Among the letters of Julian are two (29 and 30)
addressed to Alypins; one inviting him to Rome, the other thanking
him for a geographical treatise, which no longer exists.
See also Ammianus Marcellinus xxiii. 1, sec. 2.
Initial text from 1911 encyclopedia -- Please update as needed