Mona Simpson

Mona Penelope J. Simpson (neé Olsen), also known as Sunny, is the mother of Homer, Herbert and Abbey, the wife of Abraham Simpson, the mother-in-law of Marge Simpson, the niece-in-law of Zeke Hickman, the granddaughter-in-law of Willard Hickman and Theodora Hickman, and the paternal grandmother of Bart, Lisa and Maggie Simpson. More importantly, she is also the daughter-in-law of Orville Simpson and Yuma Simpson.