Grandpa Simpson

Abraham Jay "Abe" Simpson II (also known as "Grampa Simpson", or simply as "Grampa") is the patriarch of the Simpson family, the father of Homer Simpson, Herbert Powell, and Abbie and the grandfather of Bart, Lisa, and Maggie Simpson. Abe is a World War II veteran who was later sent to the Springfield Retirement Castle by Homer. He is known for his long, rambling stories and incompetence.