But the people of Brittany paid for the fun.
When Jean V.was captured by the Count of Penthievre at the bridge of Loroux, he promised a ransom of one million; he promised his eldest daughter, who was already betrothed to the King of Sicily.

He promised Montcontour, Sesson and Jugan, etc., but he gave neither his daughter nor the money, nor the cities.

He had promised to go to the Holy Sepulchre.

He acquitted himself of this by proxy.

He had taken an oath that he would no longer levy taxes and subsidies.