Cromwell is the surname of an American pure-blood wizarding family and is considered one of the most famous. The Cromwells are rumored to be related to the Malfoys, which, if true, would make them related to a majority of the other pure-blooded families still located in Great Britain.
- "The Cromwells profess themselves as the 'survivors of the Salem Witch Trials.' As a result, they set up shop in Salem and intermarry with other pure-blooded families. They are one of the few wizarding families in this post-Voldemort era who still observe such archaic practices as blood-purity."
- —an excerpt from The Magical Families of North America[src]
Several Cromwell witches were victims of the Salem Witch Trials. As a result, they proudly proclaim themselves "survivors of the Salem Witch Trials," and have rooted themselves in Salem, Massachusetts.