Prompt
Generate an image of a 17th-century English gentleman, specifically a portrait of Algernon Sidney, a politician, writer, and political scientist, dressed in formal attire, with a serious expression, standing in front of a backdrop that subtly suggests his involvement in politics and literature, possibly with a nod to his influential work "Discourses Concerning Government". The style should be reminiscent of 17th-century European portraiture, with attention to detail and realism.