Slaying the Dragon myth

ST. George's Day is on
April 23, but England will not be the only country venerating him as its patron. Portugal, Germany, Aragon, Genoa and Venice also claim that honour.
The real facts about St. George's life are shrouded in legend. He was certainly a martyr—at Lydia in Palestine about 300 ao—and a professional soldier. Hence the great honour paid to him by the Crusaders.
The fire-breathing dragon bit was evidently a later embellishment, originating in Italy
about the 12th century. It seems to be based on the Perseus legend in Greek mythology.
Perseus, son of Zeus and Danae, slew Medusa the Gorgon, and rescued Andromeda, a beautiful Ethiopian princess, from a sea-monster.