John of Brienne (Jean) (c. 1148 - 1237), king of Jerusalem and Latin emperor-regent of Constantinople, was a man of sixty years of age before he began to play any considerable part in history. He was the second son of Erard II, count of Brienne, in Champagne, and of Agnes de Montfaucon, countess of Montbéliard. Destined originally for the Church, he had preferred to become a knight, and in forty years of tournaments and fights he had won himself a considerable reputation, … Wikipedia
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