 Under de Montfort's successor, Hugues de Montrelais, whose bishopric ran from 1357 to 1375, the new cathedral was finished, but in 1394 the town was under siege again, this time by Olivier de Clisson and again was badly damaged.Now Bishop Guillaume Angier took charge of the reconstruction necessary and apart from the reconstruction of the choir, he finalised the long-awaited construction of the Tour Marie.Then Bishop Jean de Malestroit reconstructed the gable of the north wing of the transept and had a magnificent window installed there, sadly destroyed by the storm of 1735.