About this Simpsons episode:
The Simpsons - Mona Leaves-a is the 19th episode of season 19 and number 419 overall in the series.

The episode features the death of Homer's mother, Mona Simpson. Homer is reunited with his mother, Mona, but is not willing to forgive her for all the times she left him as a child. When she dies, a guilt-ridden Homer attempts to make it up to her by fulfilling her final wishes. It was written by Joel H. Cohen and directed by Mike B. Anderson and Ralph Sosa. Glenn Close makes her third appearance as Mona Simpson, and Lance Armstrong has a cameo as himself.[2] The episode is dedicated to the memories of Elsie Castellaneta (Dan Castellaneta's mother) and Dora K. Warren (Harry Shearer's mother). Also, this episode marked the start of yearly episodes to deal with women or mothers while airing on Mother's Day.