Red Sonja is a fictional sword and sorcery comic-book superheroine created by writer Roy Thomas and artist Barry Windsor-Smith for Marvel Comics in 1973, partially based on Robert E. Howard's characters Red Sonya of Rogatino and Dark Agnes de Chastillon.

Is Red Sonja owned by Marvel?

Well, actually, that's an oversimplification: You see, when Marvel Comics introduced Red Sonja into their comic book adaptations of Howard's Conan the Barbarian stories, she wasn't actually one of Howard's creations—just heavily inspired by one, namely Red Sonya of “The Shadow of the Vulture.” So when the copyrights ...

Why is Red Sonja not marvel?

Red Sonja was conceived by Marvel as an amalgamation of various female heroines from the Conan the Barbarian lore created by Robert E Howard for 1930s pulp stories. ... Thus, Red Sonja won't be a part of the Marvel Cinematic Universe.