Grand-Duck Delores was an anthropomorphic duck. She was the grandmother of Daisy Duck, and Daisy's Sister. She is also the great-grandmother to April, May and June.
She gave Daisy her rubber duck Duckie-Doo, Daisy remembered her in the Mickey Mouse Funhouse episode Día de los Muertos, where she is seen a long with José Carioca and Panchito Pistoles.