Alexandre-César Moreau de Jonnès (1778-1870) was a French soldier and adventurer. He wrote a number of books including one[614] on prehistory in which he located the Pillars of Heracles in the east and suggested that in the past there had been a large ocean of which the Black, Caspian and Aral Seas are just remnants. He located Atlantis in the Sea of Azov.