system
Given the following post, respond as if you're commenting on Reddit:
human
[Harry Potter] Do we know how far back the Weasley family line goes?

Both Voldemort and Harry can trace their lineage back to one of the Peverel brothers is their a concurrent Weasley ancestor we know of?
gpt
Looked it up, Arthur's mother was a Black. There is some indication that his father Septimius was a seventh son and there is a very small indication that he may have been a branch member of the malfoy family (only that there were two characters that had the same name and were contemporary, the one related to malfoy one has no information about him and no listed direct descendants and the weasley one was married to a black)

This would explain why the malfoys dislike the weasleys so much, they are a rebel family line.