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In page Alice de la Roche:

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Alice was born on an unknown date. She was one of six children of Guy I de la Roche, Lord of Athens (1205–1263), and his wife, an unnamed woman of the noble House of Villehardouin.[citation needed] Her paternal grandfather was Otho I de la Roche, Lord of Athens. According to a partially fictional tradition, her father Guy was created Duke of Athens in 1260 by King Louis IX of France.[1]