Origin and history
The Notre-Dame du Tronchet Abbey, located in Le Tronchet in Ille-et-Vilaine, has its origins at the end of the 11th century, when a place of prayer was established in the forest by Gaultier, an anachorete cured of leprosy. A godly community formed around him, attracted by his virtues. In 1140, Alain, the son of Jordan, Seneschal de Dol, founded a church on this site, followed in 1150 by a convent. The abbey was officially erected in 1170 by Benedictine monks of the Congregation of Tiron, under the name of Notre-Dame du Tronchet, with the support of Pope Alexander III.
In the 12th and 13th centuries, the abbey prospered through donations and privileges, such as the concession of a three-day fair by Henry II of England in 1150. It initially depended on the abbey of Tiron, but obtained some autonomy while remaining subject to canonical visits. The monks acquired lands, tithes and seigneurial rights, such as those on the mansion of Dinan or the tithes of Saint-Pierre-de-Plesguen. The abbey also enjoyed rights of justice, symbolized by patriarchal forks in the village.
Between the 14th and 15th centuries, the abbey went through periods of tension, notably with the archbishop of Dol and the abbey of Tiron. In 1422 the election of Alain Costard re-launched the protests, while Gilles Raguenel, abbot in 1436, strengthened ties with the local priories. In 1478, François de Beauchêne, abbot, received pontifical bubbles giving him episcopal privileges. However, the beginning of the 16th century marked a decline, as the abbots appointed by the civil power neglected the maintenance of the premises.
In the seventeenth century, in the face of decadence, the abbey was reformed by the Congregation of Saint Maur. In 1607, Dom Isaac Jaunay found only one resident monk, Dom Gilles Le Bret, in a monastery in ruins. The reconstruction began in 1642 on a nearby hill, to escape the unsanitary swamps of the original location. The abbey church, of neo-Greek style, was completed in 1679, while the convent buildings and the cloister were renovated. The abbey then regained some prosperity, despite conflicts with the local authorities, such as that of the tithes novales in 1674.
The 18th century was marked by religious tensions, especially with the bishop of Dol during the Jansenist crisis in 1718. The abbey, already weakened, was dissolved in 1767 by the Commission des Reguliers for lack of monks, then restored in 1774 thanks to the intervention of the bishop of Dol and the inhabitants. During the Revolution, the abbey was looted, sold as national property, and partially demolished. The remains were bought by the villagers, and the church became parish in 1826. Ranked a historic monument in 1933, it was restored in the 20th century.
Today, only remains of the convent buildings and the abbey church, bearing witness to its glorious past. The site, once animated by cultural associations, retains part of its original architecture, such as the 28-pillar cloister or the hotel house transformed into a presbytery. The partially reconstructed gardens evoke monocale self-sufficiency, with a 17th century well and squares dedicated to medicinal and food plants. The Abbey remains a symbol of Breton religious heritage, linked to figures such as Chateaubriand, which evoked its melancholy in its Mémoires d'Outre-Tombe.
