Geta was the brother of the emperor Caracalla.
During a visit in 215 the emperor Caracalla dismissed all
Egyptians from Alexandria, except those on legitimate
business, and removed the prefect from office, issuing
orders from the temple of Sarapis for indiscriminate
slaughter of the youth of the city. The Alexandrians had
offended the emperor by alleging that he had been
involved in the murder of his brother.