Antinous, who was the lover and friend of Emperor *Hadrian, accompanied him on his tour of Egypt in AD 130. Tradition relates that he drowned himself in the Nile in order to fulfil a prophecy that predicted severe losses for *Hadrian, and to forestall even worse events.
Hadrian founded a city (Antinoupolis or Antinoe) in memory of Antinous, at the place where he died. On occasion it was the custom in Egypt to deify persons who were drowned in the Nile, and *Hadrian followed this practise by establishing a cult for Antinous at this city. Very little remains of the site (opposite er-Roda in Middle Egypt), but it was apparently a fine and thriving place in antiquity.
Biographical Dictionary of Ancient Egypt by Rosalie and Antony E. David
Ancient Egypt. A Reference Guide. EdwART. 2011.