She made her first appearance in The River Pirates (Walt Disney's Comics (No. Series) #271) by Carl Fallberg and Paul Murry, in which she was shown to be just as much of a criminal as her son. However, in her latest comic book appearance, The Spirit of Christmas (Walt Disney's Comics and Stories #663), a flashback of Pete shows that his mother was a very decent and honest woman during Pete's childhood, whom Pete very fondly remembers.
In the film Mickey, Donald and Goofy: The Three Musketeers, Pete shows a portrait of his mother, imitating her voice while singing the song "Petey's King of France". During the song, it is indicated that Pete became evil because his mother did not approve of him, and he wanted to become king to impress her and finally gain her acceptance.