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Heritage classified

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Origin and history

The Collège Notre-Dame de Lamballe, also known as Notre-Dame-de-Grande-Puissance, is a former collegiate church located in the Côtes d'Armor, classified as a Historic Monument since 1848. Its construction runs from the 12th to the 16th century, mixing Romanesque elements (gates north and west), gothic radiating (chœur, transept south) and flamboyant (northern chapels). The building, originally linked to Lamballe Castle, was fortified in the 14th century by Charles de Blois during the War of Succession of Brittany, integrating turrets, niches and casemates to make it a key element of local defences.

The history of the college is inseparable from that of the Counts and Dukes of Penthièvre. Founded near a castral chapel mentioned in 1083, it was dedicated around 1202 by Bishop Geoffroy Hernon. In the 13th century, Geoffroy Botterel III and Alain de Penthièvre contributed to its construction, while in the 14th century, Jeanne de Penthièvre and Charles de Blois added southern chapels and fortifications. Marguerite de Clisson, in the 15th century, financed the jube, the vault of the choir and the reconstruction of the southern collateral, despite the conflicts linked to its ducal ambitions.

The college suffered damage during the wars of Religion and the League (XVI century), then deteriorated in the 17th–15th centuries, with partial collapses and the loss of its arrow. In the 19th century, a major restoration (1850–57) reconstructed the nave in the same way, reinforced the southern foundations threatened by a quarry, and added a sacristy in 1885. Its unique architecture, combining religious and military functions, bears witness to power struggles in medieval and modern Brittany.

The exterior facades reflect this stylistic diversity: the west facade, a Roman-Gothic façade, has a carved portal and a shield of Brittany; The southern facade shows 15th century chapels and a fortified tower; The flat bedside, flanked by turrets, dates from the 14th century. Inside, the nave, rebuilt in the 19th century, preserves Roman-Gothic arches, while the choir exhibits asymmetrical elevations (north triforium with quadrilobed balustrade vs south arches with trilobed arches), illustrating successive construction campaigns.

The bell tower, several times redesigned, lost its arrow after 1626, replaced by a terrace. The stained glass windows, including the large window of the choir (destroyed in the 19th century), and the jube of 1414–15 (disappeared) recall the patronage of Marguerite de Clisson. The collegiate church, spared during the destruction of the castle in 1420 and 1626, embodies the resilience of a heritage marked by the Breton conflicts, from feudal wars to the Revolution, where it became a temple of Reason.

Today, the collegiate Notre-Dame de Lamballe remains an exceptional testimony of fortified religious architecture, where almost five centuries of Breton history overlap, from the Counts of Penthever to the restorations of the Second Empire.

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