The gothic style mansion was originally built in 1700 but was rebuilt several times after it was attacked and almost left devastated after facing wars by fellow mutants. According to Marvel Comics, the mansion had to be rebuilt at least 10 times.
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The first of the two generation of mutants like Cyclops, Angel, Beast, Jean Grey and Lorna Dane were trained there.
Mirage, Sunspot, Magma, Magik, and Warlock along with Shadowcat, are some of the other names trained there.
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The most established mutant to ever come out of the school was Jean Grey, also referred to as her alter ego Dark Phoenix. Her powers were unparalleled and only matched up to Dr X, and she acquired tremendous abilities to control and manipulate her powers.
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