Who is Mr. Poe from The Vile Village and what is their importance?

Mr. Poe is the Baudelaire children's main guardian after their parents' death. Mr. Poe's main job is to find caretakers for the children, but after a string of unfortunate events, there are no longer any relatives, however distant, willing to risk Count Olaf's wrath by taking in the children. Therefore Mr. Poe has decided to follow the aphorism "It takes a village to raise a child" and sends the Baudelaires to the Village of Fowl Devotees.