Grandma Duck is the matriarch of the Duck Family. She is a farmer.
She is a granddaughter of Cornelius Coot, the founder of Duckburg. Her parents were Clinton Coot and Gertrude Gadwall. Her brother was Casey Coot. She married Humperdink Duck but long survived him. Their children were Quackmore Duck, Daphne Duck and Eider Duck. She is the paternal grandmother of Donald Duck, Della Duck (both by Quackmore), Whitewater Duck and Fethry Duck (both by Eider). She is the maternal grandmother of Gladstone Gander (by Daphne).