"She didn’t like me much. Euphemia Rowle... she only took me in for the gold."
-- Delphi (CC3.16)
Euphemia Rowle was an “extreme Death Eater” and the guardian of Delphi, the offspring of Lord Voldemort and Bellatrix Lestrange (CC3.16).
- Euphemia only took in Delphi because she was paid in gold. She disliked the child, and taunted that her pet Augurey's sad cry foretold her "sticky end" (CC3.16).
Kept a pet Augurey in a cage.
Other canon notes and references
Possible relative of Thorfinn Rowle, one of Voldemort's Death Eaters (DH9).
Interestingly has the same first name as Harry's grandmother, Euphemia Potter, wife of Fleamont Potter (Pm). The shared name hints at a common relative or ancestor, which is possible because they were all Pure-bloods.