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The International Prester John Project: How A Global Legend Was Created Across Six Centuries

Emperor Charles IV

Emperor Charles IV was both the recepient of a letter allegedly from the Ethiopian king asking for military alliance as well as the addressee on a fiftteenth-century Letter of Prester John.

In addition, he commissioned John de'Marignolli's History of Bohemia, which discusses the land of Prester John in Ethiopia surrounded by the biblical river Gyon, which has now come to be known, according to the author, as the Nile

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