Oakden Hobday

Oakden Hobday was one of two names which J. K. Rowling considered giving to the Defense Against the Dark Arts professor in Harry Potter's fifth year when she was planning Harry Potter and the Prisoner of Azkaban.

He may have been intended as a relative of Hilliard, Violetta, and Egmont Hobday.

Etymology
The name Oakden began as a surname and was derived from Ogden, the name of several places in England, which means "oak valley," from the Old English words ac, "oak," and denu, "valley."