Lagny Abbey
abbey located in Seine-et-Marne, in France
Lagny Abbey (St Peter’s Abbey, Lagny) was a monastery in the present-day commune of Lagny-sur-Marne in the department of Seine-et-Marne in France, in the eastern suburbs of Paris. It was founded in 644, refounded in about 990 and after well over a millennium of existence (almost 1,150 years) was seized by the state during the French Revolution.
History
The original foundation was made about 644 by Saint Fursey, at the request of Erchinoald, then mayor of the palace of Burgundy, who also provided land for it. The new house quickly attracted gifts from Clovis II, king of Neustria and his wife, the Anglo-Saxon Queen Bathild (later canonised), and this ensured it a certain prestige.
The earlier monastery was reduced to ruins by the Normans in the 9th century. Herbert II and Stephen I, Counts of Meaux, had the abbey rebuilt between 990 and 1018. In 1019 the newly rebuilt church was consecrated by Leotheric, Archbishop of Sens, and dedicated to Saint Peter, Saint Paul and the Holy Innocents. On that occasion, King Robert II of France made two gifts to the house from the treasure collected by the Emperor Charlemagne at Aix-la-Chapelle. One was considered to be a thorn from the Crown of Thorns of Jesus and the other a Holy Nail from his Crucifixion. Both were lost in 1567 when the Abbey was pillaged by Calvinists during the French Wars of Religion.
“Lagny Abbey” enters the record as abbey located in Seine-et-Marne, in France. Crown Archives preserves that source wording while asking what Lagny, Abbey and abbey can confirm, complicate or overturn.
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“Lagny Abbey” is worth following because a concise public description often conceals a longer documentary argument. Here, Lagny, Abbey and abbey provides the most credible route into that argument.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Sep 19, 2026. The linked authority identifier is Q333978. VIAF identifies the subject as 143329985. Authority coordinates are 48.878, 2.706. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1018, 1019 and 1567.
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This entry incorporates text from “Lagny Abbey” 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.