The standard version of the story of Saint George is in 'The Golden Legend'. Saint George rescued a princess who had been sacrificed to appease the dragon which was terrorising the inhabitants of a city. He is shown charging the beast while the princess flees to the left.
Elements of the landscape, including the town, may be derived from north Italian, or northern European, precedents.The painting has been dated about 1615, but, as it seems rather earlier than his 'Landscape with Tobias', may be of about 1610-11.