Nathaniel Potter is the younger brother of the late Lord James Potter who was disowned for breaking a betrothal contract his parents arranged to the much older Amelia Bones. Though forced to disown him, both his parents and his brother kept in touch with and supported Nathaniel financially and emotionally. Eventually, he married a werewolf named Lorelai Mitchelson with whom had had two children. Eventually, James' son reinstated him to the family despite the threats from House Bones.

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