Basilica of Notre-Dame-de-Bon-Secours, Guingamp
basilica located in Côtes-d'Armor, in France

The Basilica of Notre-Dame de Bon Secours (French: Basilique Notre-Dame-de-Bon-Secours de Guingamp) is located in the town of Guingamp, in Brittany, France. Originally a castle chapel and then a parish church, built not later than the early 12th century, it became a Marian pilgrimage destination dedicated to Our Lady of Good Help which gained prominence in the 17th century. It was raised to the status of a minor basilica in 1899.
History
In 1093, Stephen I, Count of Penthièvre, inherited the countship of Penthièvre following the death of his elder brother, Count Geoffrey I. He significantly developed the town and its surroundings. Within the city walls, the former castle chapel became a respected and influential parish church.
In the 12th century, the church was successively dedicated to Saint Peter, Saint Paul and the Blessed Virgin Mary, becoming a Marian pilgrimage site.
In the early 13th century, a major collapse necessitated extensive reconstruction, which lasted over fifty years and was completed around 1350 under Charles de Blois, Duke of Brittany. The duke contributed to the construction of the sacristy, laying its first stone, and the high altar. The church and town endured hardships during the War of the Breton Succession and the French Wars of Religion. It was not until the mid-17th century that the church's prominence and the cult of the Virgin Mary gained significant recognition.
This brief starts where responsible research should: with the source description of “Basilica of Notre-Dame-de-Bon-Secours, Guingamp” as basilica located in Côtes-d'Armor, in France. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the general reference register because the source frames it as basilica located in Côtes-d'Armor, in France. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Aug 2, 2026. The linked authority identifier is Q2886896. VIAF identifies the subject as 14145376343183720083. The Library of Congress control number is no2005040853. Authority coordinates are 48.561, -3.151. 3 of 4 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1899, 1093 and 1350.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Basilica of Notre-Dame-de-Bon-Secours, Guingamp” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.