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Mary Watson SquarePants
General
Birth date February 1, 1922
Bikini Bottom, Pacific Ocean
Parents George Watson
Anna Watson
Spouse William SquarePants
Children Henry SquarePants
Blue SquarePants
Robert SquarePants
Harold SquarePants
Sherman SquarePants
List of characters

Mary (Watson) SquarePants is SpongeBob's grandmother in the SpongeBob's Childhood spin-off. She is known to spoiler her grandchildren, especially her grandson SpongeBob Squarepants.

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