I thought she was the Wicked Witch of the West.
The Wicked Witch of the East was believed to be more powerful than the
Good Witch of the North, but not as powerful as
Glinda, the Good Witch of the South. She also appeared to be more powerful than
Mombi, the Wicked Witch of the North, as the Good Witch of the North was able to defeat Mombi, but was powerless to overthrow the witch of the east and free the Munchkins.
She was not in any way related to the
Wicked Witch of the West (as is made out to be in several adaptions) but was in league together with her, the
Wicked Witch of the North, and the
Wicked Witch of the South to conquer and divide Oz among themselves in four sections as recounted in Baum's fourth Oz book,
Dorothy and the Wizard in Oz (1908). After the fall of
Pastoria, the last mortal King of Oz, the old witch conquered the eastern section of Oz and held the native Munchkins in her bondage for a number of decades.
en.wikipedia.org
Did the Wicked Witch of the West in The Wizard of Oz have a name? Why is the Wicked Witch of the West evil?
These series of events all reveal the inherent evil and true wickedness of the Witch who craves nothing but power.
Greed is her primary motivation. The Witch is unsuccessful at stopping Dorothy from reaching the Wizard, but in a twist of fate the Wizard charges Dorothy with disposing of