There he remained nine years.

But he too had a valiant and indomitable wife, Joan of Penthievre, the Cripple.

She did for her husband all that Joan of Montfort was doing for hers.

All the time that he was a prisoner in the Tower of London, she was the soul and the head of his party, in the open country as well as in the towns, turning to profitable account the inclinations of the Breton population, whom the presence and the ravages of the English had turned against John of Montfort and his cause.

She even convoked at Dinan, in 1352, a general assembly of her partisans, which is counted by the Breton historians as the second holding of the states of their country.