The Bay of Baiae, with Apollo and Sybil, 1823–J.M.W. Turner (1775-1851). Marcus Aurelius, an adopted son of the Emperor Hadrian, was himself Roman Emperor from CE 161 to 180. Baiae, where Hadrian spent his last days, was a Roman seaside resort on the Bay of Naples. M. Aurelius vacationed there with the imperial family in the summer of 143.