Daisy Duck Once Upon a Christmas", "Mickey's Twice Upon a Christmas", and "". According to the unofficial timeline of Don Rosa, Daisy was born in 1920. According to Rosa, Daisy is the sister of Donald's brother-in-law – Daisy's brother had married Donald's twin sister, Della Duck, and together, the two became the parents of Huey, Dewey, and Louie Duck. This is his explanation of why the triplets tend to call her "Aunt Daisy" while no such courtesy is given to Gladstone Gander for example. Don Rosa has said that he considers Donald and Daisy to be nonrelated and that Duck simply is
Donald Duck famously drawn by Al Taliaferro, Carl Barks, and Don Rosa. Barks, in particular, is credited for greatly expanding the "Donald Duck universe", the world in which Donald lives, and creating many additional characters such as Donald's rich uncle Scrooge McDuck. Donald has been a very popular character in Europe, particularly in Nordic countries where his weekly magazine "" was the most popular comics publication from the 1950s to 2009. Donald is also very popular in Italy, where he is major character in many comics in which his juvenile version Paperino Paperotto and his superhero alter-ego "Paperinik" ("Duck Avenger" in the