Madelyne Pryor is a mutant clone of Jean Grey of the X-Men. She was created by Mister Sinister, and her existence was orchestrated to fulfill a grand scheme to birth a living weapon to destroy Apocalypse. Born out of manipulation and experimentation, a heartbreaking whirlwind romance led to marriage and the birth of their son, Nathan Summers, the time-traveling mutant Cable. However, the strains of Scott's lingering attachment to Jean Grey, coupled with Madelyne's own sense of abandonment, led to a heartbreaking unraveling of their family.