Harry Potter Family Tree — The Black, Potter, Weasley and Malfoy Lines

The four families

Each family is a separate network because each one answers a different question. The Blacks explain blood purity and its cost. The Potters explain loss and chosen family. The Weasleys explain what an ordinary, loving home does for a boy who never had one. The Malfoys explain how money and fear hold a family together until the war breaks it.

House of Black

The pure-blood family that produced both a blood traitor and the Dark Lord's most devoted follower. Sirius, Regulus and the three sisters: Bellatrix, Narcissa and the disowned Andromeda.

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Design sheets

The Potters

James, Lily and Harry. The family Harry lost, and the chosen family that replaced it: Sirius as godfather, Remus as surrogate, the Weasleys as the home he never had.

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The Weasleys

Seven children, one crooked house, and the first family that treated Harry as their own. Arthur and Molly's line runs through Ron, Ginny, Fred and George.

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The Malfoys

Old money, borrowed power, and a mother who chose her son over the Dark Lord. Lucius, Narcissa, Draco, plus Bellatrix as aunt by marriage.

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Design sheets

Why a network instead of a poster

• The relations are data, not drawing.Every edge is an explicit pair in the page data. The lines cannot drift to the wrong person, which is exactly what happens when an image model is asked to draw a family tree.
• Switch the view.The whole family, the bloodline only, the Malfoys, or the war as it touches each house — each view is a filter over the same graph.
• Click a face.Each portrait opens the character, their role, and the relations around them.
• It works on a phone.Nodes stay tappable, labels reflow, and the graph zooms without losing the lines.

Questions

• Is this canon? The relations follow the books. Where the films or later material add a connection, the page prefers the books and says so in the character description.
• Why are there four networks? A single graph with every character becomes unreadable. Four family networks keep each line legible and let the page answer four different search intents.
• Can I see the whole tree at once? Yes — the hub page links all four, and the Black network includes the branches that connect to the Malfoys and the Potters.
• Can I make one for another family? Yes. The same format takes any world with named characters and canon relations, and builds the nodes, edges and portraits from that data.