Whats up with Quaithe?

In Game of Thrones / ASOIAF, who is Quaithe? And what do her prophecies mean for Daenerys?\r
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This video contains major spoilers for Books 1-5.\r
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Created with Toon Boom Studio 8.1, a Wacom Intuos Pen Tablet, and a Blue Yeti microphone.\r
Images and video from Game of Thrones, Lord of the Rings and Tenacious D are the property of their creators, used here under fair use.\r
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Map based on the Known World map in The Lands of Ice and Fire.\r
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Thanks to María Mariño Costa for the Spanish captions.\r
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Errata:\r
7:00 Aegon IV Targaryens Daenerys was a trueborn daughter, not a bastard