Capri Flanders
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Mona Flanders is the mother of Ned Flanders and the wife of Nedward Flanders Sr. She is a beatnik. She is seen in the episodes "Lisa's First Word" when Ned introduces "Grandma Flanders", where she is visibly aged and senile. A much younger Mona Flanders is seen in "Sweet Seymour Skinner's Badasssss Song" when Ned has a flashback about his parents and "Hurricane Neddy" when she and her husband bring Ned to Dr. Foster. She is also referred to in "Lisa's Date With Density". It is assumed that by the normal Simpsons timeline that Mona Flanders, along with her husband Ned Flanders Senior, is deceased, likely due to her extreme old age.
Her name may be a reference to Homer's mother Mona Simpson.