Lucrecia was once Vincent's love. After agreeing to become a part of the JENOVA project, she bore a child with Hojo. She then named that child Sephiroth. Never able to have any contact what-so-ever with Sephiroth, she protested this. Hojo then had it ordered that she be sealed in a cave behind a waterfall where no one could reach her. This also happening to Vincent for trying to stop Lucrecia from becomming a part of the whole thing. He was put to sleep in a coffin located in the Shrina mansion basement, where no one could find him to wake him. Before this, Vincent was also used for the needs of science and given a  claw and a 'beastly' power.
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