Elladora Black

Elladora Black (1850 - 1931) was the sister of Sirius, Phineas Nigellus, and Isla Black. She never married or had children. Elladora instituted the policy of cutting off the heads of the family house-elves and mounting them on the wall once they became too old to carry a tea tray.

Etymology
The name Ella is a Norman form of the Germanic Alia, meaning "other". It is also possibly related to Aella, a Greek name meaning "whirlwind". Aella of mythology was an Amazon killed by Hercules. The name Dora, often considered a diminutive of Theodora, is derived from the Greek word doron, meaning "gift"

Appearances

 * Harry Potter and the Order of the Phoenix