What two persons created the fictional anti-hero who appears in the Marvel Comics and is the sone of Romani witch Cynthia VonDoom?
Doom 2099: Doom 2099 (Victor Von Doom) is a fictional anti-hero appearing in American comic books published by Marvel Comics. Doom 2099:  The character is based on Doctor Doom, created by Stan Lee and Jack Kirby. Doctor Doom:  The son of Romani witch Cynthia Von Doom, Doctor Doom traditionally has been the archenemy of the Fantastic Four, and the leader of the fictional nation of Latveria.
Stan Lee and Jack Kirby.