Question: What character that first appeared in "Marvel Mystery Comics" #13 is said to be married to Scarlet Witch?

Context paragraphs:
Vision (Timely Comics): The Vision (Aarkus) is an American fictional comic book superhero who appeared in comic books published by Marvel Comics during the Golden Age of comic books.  Created by the writer Joe Simon and artist Jack Kirby, the character first appeared in "Marvel Mystery Comics" #13 (Nov. 1940), published by Marvel predecessor Timely Comics.

Wiccan (comics): Wiccan (real name William "Billy" Kaplan) is a comic book fictional, comic book superhero, and a member of the Young Avengers, a team of teenage superheroes appearing in books published by the Marvel Comics.  Created by writer Allan Heinberg and artist Jim Cheung, the character first appeared in "Young Avengers" #1 (April 2005).  The character's appearance is patterned on that of two prominent Marvel superheroes, Thor and Scarlet Witch, both of whom are members of the Avengers.  Like the Scarlet Witch, Wiccan possesses very powerful magical abilities which make him a key member of his superhero team.

Scarlet Witch: Scarlet Witch (Wanda Maximoff) is a fictional superhero appearing in American comic books published by Marvel Comics.  The character first appeared in "X-Men" #4 (March 1964) and was created by Stan Lee and Jack Kirby.  The character has since starred in two self-titled limited series with husband the Vision, and has historically been depicted as a regular team member in superhero title "The Avengers".

Masked Raider: The Masked Raider is an American comic book character who appeared in American comic books published during the 1930s and 1940s period known as the Golden Age of Comic Books.  Created by writer-artist Al Anders, he first appeared in the Timely Comics' anthology series "Marvel Comics" #1 (Oct. 1939), and ran through issue #12 (Oct. 1940) of the by-then retitled "Marvel Mystery Comics".

American Ace: American Ace (Perry Webb) is a fictional character appearing in American comic books published by Marvel Comics.  He first appeared in the uncirculated "Motion Picture Funnies Weekly" #1 in 1939.  The character would make his first public appearance when his Motion Pictures Funnies Weekly strip was published in Marvel Mystery Comics #2 and #3.

The Vision and the Scarlet Witch: The Vision and the Scarlet Witch is the name of two limited series published by Marvel Comics.  They starred Vision and the Scarlet Witch, two longtime members of the Avengers.

Miss America (Madeline Joyce): Miss America (Madeline Joyce Frank) is a fictional character appearing in American comic books published by Marvel Comics.  She first appeared in "Marvel Mystery Comics" #49 (Nov. 1943), and was created by writer Otto Binder and artist Al Gabriele for Timely Comics, the 1940s precursor of Marvel, in the period fans and historians call the Golden Age of Comic Books.

Vision (Marvel Comics): The Vision is the name of several fictional superheroes appearing in American comic books published by Marvel Comics.  The first iteration, created by Joe Simon and Jack Kirby, was an alien who first appeared in "Marvel Mystery Comics" #13 (November 1940).  The second iteration, by Roy Thomas, Stan Lee and John Buscema, was an android and a member of the Avengers who first appeared in "The Avengers" #57 (October 1968).  The third Vision is a time traveler who fused with the second version's operating system.  The character is portrayed by Paul Bettany in the 2015 film "" and the 2016 film "".

House of M: "House of M" is a 2005 comic book storyline published by Marvel Comics.  The storyline consists of a core eight-issue comic book limited series written by Brian Michael Bendis and illustrated by Olivier Coipel, and a number of crossover tie-in books.  Its first issue debuted in June 2005 as a follow-up to the events of the "Planet X" and "Avengers Disassembled" storylines, in which the mutant superhero Scarlet Witch suffered a mental breakdown and tried to alter the fabric of reality to recreate her lost children.  Scarlet Witch's father, Magneto, and her twin brother, Quicksilver, played major roles in the series.  Like the 1995–1996 "Age of Apocalypse" storyline, "House of M" replaced the Earth-616 as the main reality for a brief time until Scarlet Witch reverts to normal.  The events of the storyline were later indicated to have occurred on Earth-58163.

Marvel Mystery Comics: Marvel Mystery Comics (first issue titled simply Marvel Comics) is an American comic book series published during the 1930s–1940s period known to fans and historians as the Golden Age of Comic Books.  It was the first publication of Marvel Comics' predecessor, Timely Comics, a division of Timely Publications.

Supporting paragraphs: Scarlet Witch Vision (Marvel Comics)
Answer: Vision