Duck family (Disney)
The Duck family is a fictional family of cartoon ducks related to Disney character Donald Duck. The family is also related to the Coot, Goose, and Gander families, as well as the Scottish Clan McDuck. Besides Donald, the best-known members of the Duck family are Huey, Dewey, and Louie, Donald's three nephews.
Ludwig Von Drake
In the "Wonderful World of Color" episode "Kids is Kids", Ludwig states that he is a bachelor. In the "Wonderful World of Color" episode "The Hunting Instinct", Walt Disney states Ludwig is Donald Duck's father's brother.