Looks Like Harry Potter and Draco Malfoy May Be... Related
The genealogy of the Wizarding World is much more curious and intricate than you might think.
The magical world of Harry Potter may seem large, but there are not that many wizards and witches, and even fewer pure-bloods.
Therefore, many of them are closely related to each other, though they not always happen to be on the same side.
The confrontation between Harry and Draco can be considered an iconic example of rivalry. They are definitely the most recognizable opponents in both books and movies.
But these two are more alike than you might think. Both come from families with a long history, have an uncomfortably close relationship with Voldemort, both have tried to be like their fathers, both are rich.
And both also have common relatives.
Harry and Draco are related by a common ancestor – this can be seen in the Black family genealogy, which traces their connection to Dorea Black, who married the brother or cousin of Harry's grandfather Charlus Potter.
This means that Charlus is Harry's great-uncle, Dorea is Harry's great-aunt, and their son, whose name has not been published and has been removed from the tree is Harry's cousin.
Dorea was the great-aunt of Sirius and Regulus Black, as well as Bellatrix, Andromeda and Narcissa Black, who married Lucius and took the family name Malfoy.
This makes Dorea Draco's great-grandmother — and links Harry and Draco.
The fact that all pureblood families are connected in one way or another is mentioned more than once in the books, and this is confirmed not only by the example of the family connection between Harry and Draco, but also Draco and ... Ron.
Arcturus Black II, son of Phineas Nigellus Black, and Lysandra Yaxley had three daughters – Callidora, Cedrella and Charis, but the most curious is the fate of their middle daughter, Cedrella, who married Septimus Weasley and had three sons, one of whom is well known to us as Arthur Weasley, father of Harry Potter's best friend Ron Weasley.
Incidentally, the image of Cedrella is also burned out of the Black family tree.
The Blacks turned their backs on Cedrilla because she married the blood traitor Weasley.
From this we can conclude that Draco Malfoy and Ron Weasley are not so distant relatives, to be more precise, they are second cousins.