Downy McDuck

Downy O'Drake was Scrooge McDuck's mother and appeared in The Life and Times of Scrooge McDuck. When Scrooge is captured by Soapy Slick, the villain reads Scrooge's letters from his family to taunt him, but when he reads about Downy's death, this gives Scrooge the anger needed to get free and beat Soapy and his thugs.