Who briefly becomes Headmaster at Hogwarts after forcing Dumbledore out?

Before being installed at Hogwarts to remove Dumbledore from power and keep Harry Potter quiet, Umbridge was the Senior Undersecretary to the bumbling Minister of Magic, Cornelius Fudge. At Hogwarts, she teaches Defense Against the Dark Arts…kind of. Umbridge lectures about defensive theory and imparts no practical skills, much to her students' frustration. This obstruction inspires the formation of Dumbledore's Army.

Asked by Beth Sederstrom · Last updated 5 years ago · 346.2K views · SOURCE