- "See, I'm a collector, and according to Padma, her mother has something which would make a fine addition to my collection."
- —Theodore speaks about his hobby
Theodore was a collector, specializing in the collection of wands and items related to wandlore. According to him, one of his most prized collectibles was a piece of wood which came from the tree which sprouted from Salazar Slytherin's wand.
Theodore is related to the Black family though his grandmother, and to the Potter family by his great-aunt's marriage to Fleamont Potter. As such, he is a second cousin of Harry Potter.
- Samuel Nott (great-grandfather) †
- Elladora Black (great-grandmother) †
- Demetrius Nott (grandfather)
- Amelia Fawley (grandmother)
- Mr. Nott (father)
- Mrs. Nott (mother) †
- Harry Potter (second cousin)
- Dominus Mundi (First appearance)