Abraham Simpson

Abraham Jedediah "Abe" Simpson II, usually referred to as Grampa Simpson or simply Grampa, is the patriarch of the Simpson family, the father of Homer Simpson and the grandfather of Bart, Lisa, and Maggie Simpson. Abe is a World War II veteran later sent to the Springfield Retirement Castle by Homer. He is known for his long, rambling, and often inaccurate stories and general incompetence.