Madelyne Pryor
Madelyne Pryor was introduced during the acclaimed 1983 "Uncanny X-Men" run that saw long-time writer Chris Claremont pair with artist Paul Smith for a series of issues that would see the Jean Grey look-alike marry the retired X-Men leader Scott Summers (Cyclops).
Madelyne Pryor
The story became more complicated in 1986 when moves by the editors and other writers to reunite the original X-Men, for the new title "X-Factor", resulted in Jean Grey's resurrection and Scott leaving his wife and son. This deeply compromised the character of Cyclops and left little room for Madelyne, and Cyclops' actions then—and towards even Jean Grey much later—have been controversial ever since. Marvel avoided addressing these problems, instead resorting to a "deus ex machina", in the 1989 "Inferno" crossover (co-scripted by Louise Simonson, with Claremont), in which Madelyne is retconned to be a clone of Jean Grey created by Mr. Sinister to produce a child with Scott Summers, and corrupted by her anger and demonic influence into the Goblin Queen, leading to her elimination and into an object of "damnatio memoriae" (and "nonperson" status) for several years.