In 1675, insurgents in the diocese of Cornouaille and elsewhere rose up in the Revolt of the Bonnets Rouges. The rebels, in contact with Holland, were expecting assistance that never came. Sébastian Ar Balp, the leader of the rebellion, was assassinated by the Marquis de Montgaillard whom Ar Balp was holding prisoner. The rebellion was repressed by the duc de Chaulnes, and hundreds of Bretons were hanged or broken on the wheel. Madame de Sévigné claimed that French soldiers garrisoned in Rennes had roasted a Breton infant on a spit. A whole street in Rennes, suspected of seditiousness, was demolished leaving the inhabitants homeless.