Bart is the nephew of Patty and Selma, two characters from the popular animated television series The Simpsons. He is the son of Marge Simpson's sister, Selma Bouvier, and her husband, Sideshow Bob. BART is an energetic and mischievous ten-year-old boy who lives with his family in the fictional town of Springfield. He is known for his rebellious attitude and pranks, which often get him into trouble.