Prompt
                                        
                                            Generate an image of a mature, middle-aged man in the 15th century, dressed in elaborate imperial attire, including a crown and ornate robes, sitting on a throne with a stern expression, representing Emperor Frederick III, the Holy Roman Emperor; style: realistic, formal portrait, inspired by Hans Burgkmair the Elder's works; background: a Gothic, ornate setting, symbolizing the Holy Roman Empire's power and prestige.