John was handed over to the English in 1412, according to the terms of the Treaty of Buzançais, and not released until 1444. In 1415 he was joined by his older brother Charles, with whom he shared an interest in literature.
The French nobleman John was transferred to English custody in 1412, under the terms of the Treaty of Buzançais, and wasn't freed until 1444. Two years later, in 1415, his older brother Charles joined him, sharing a common interest in literature.