OK, the picture is titled "the conception of Alexander the Great" >Most versions of the legend of Alexander claim that Nectanebo, the last native Egyptian pharoah, prophesied for Olympias that she would be visited and conceive a child by Ammon, an Egyptian god with the body of a man and a ram's head. While King Philip was away on military campaign, Nectanebo disguised himself as Ammon, visited the queen's bedroom, and impregnated her. The resulting child was Alexander Which is bizarre, because that is a dragon, not a man with a ram's head. https://artsandculture.google.com/asset/the-conception-of-alexander-the-great-unknown/IAEXu4DkTC4xbA?hl=en