Jean I (in Breton: Yann ) c. 1217/1218 – 8 October 1286), known as Jean the Red due to the colour of his beard, was Duke of Brittany from 1221 to his death .
Jean was the eldest of three children born to Duchess Alix and her husband and jure uxoris co-ruler, Duke Pierre I.He became duke upon his mother's death in 1221. His father, who had reigned as duke due to his marriage ruled as regent until Jean reached adulthood.In 1268, Henry III granted him the earldom of Richmond to and the title continued in his family, through frequent temporary forfeitures and reversions, until 1342.
He experienced a number of conflicts with the Bishop of Nantes and the Breton clergy. In 1240, he issued an edict expelling Jews from the duchy and cancelling all debts to them.He joined Louis IX of France in the Eighth Crusade in 1270, and survived the plague that killed the king. The duchy of Brittany experienced a century of peace, beginning with him and ending with Duke Jean III's reign in 1341.
In 1236 he married Infanta Blanche, daughter of King Theobald I of Navarre.
Jean I (in Breton: Yann ) c. 1217/1218 – 8 October 1286), known as Jean the Red due to the colour of his beard, was Duke of Brittany from 1221 to his death .
Jean was the eldest of three children born to Duchess Alix and her husband and jure uxoris co-ruler, Duke Pierre I.He became duke upon his mother's death in 1221. His father, who had reigned as duke due to his marriage ruled as regent until Jean reached adulthood.In 1268, Henry III granted him the earldom of Richmond to and the title continued in his family, through frequent temporary forfeitures and reversions, until 1342.
He experienced a number of conflicts with the Bishop of Nantes and the Breton clergy. In 1240, he issued an edict expelling Jews from the duchy and cancelling all debts to them.He joined Louis IX of France in the Eighth Crusade in 1270, and survived the plague that killed the king. The duchy of Brittany experienced a century of peace, beginning with him and ending with Duke Jean III's reign in 1341.
In 1236 he married Infanta Blanche, daughter of King Theobald I of Navarre.
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