Informed of his presence, the count permitted him to settle with his treasure and a small group of monks within the bounds of the castle.

The community, after a century of absence, did not return to the early site at Mont-Glonne, but to the castrum of the city of Saumur, which was then on Thibault de Blois's land.

The monks kept guard; royal letters dated 24 November 1369 forced all inhabitants of the levee on the right bank to keep watch there at all times.

Abbots Jean and Louis du Bellay rebuilt the ruins and reconstructed the church and convent, but a greater problem surfaced soon after.

Priories fell into the hands of laypeople or "friars who were no better", as D. Huynes says, even heretics, and the deserted chapels of obedience were transformed into granaries and stables.

In 1475, threatened by the approaching landing of the English army, King Louis XI made a long campaign in Picardy and Normandy.

Having definitively ended the Hundred Years' War in August, with the Treaty of Picquigny, the king retook Tours on 24 November after an absence of sixteen months.