Created by [Frank Miller][18] and [David Mazzucchelli][2905]. First appearance in [Batman (DC, 1940 series) #404][42449] (February 1987).
[18]:https://www.comics.org/creator/18/
[2905]:https://www.comics.org/creator/2905/
[42449]:https://www.comics.org/issue/42449/