| Maria Wolfcastle|
|Relatives|| Husband: Rainier Wolfcastle|
Daughter: Greta Wolfcastle
|First Appearance||The Boy Who Knew Too Much|
Maria Shriver-Kennedy Quimby is Rainier Wolfcastle's ex-wife.
Sometime between then and when Bart first met Rainier's daughter, Greta Wolfcastle, they apparently got a divorce. Right after Bart met Greta, Rainier tells his daughter that her mother's custody battle starts at 6:00pm.
Maria is seen marrying Rainier again, when Homer bursts in with a camera.