When Sigiramnus returned to France, he founded two monasteries with land given to him by Clothaire in the diocese of Bourges: Saint-Pierre de Longoret (Longoretum, Lonrey) and Méobecq (Millepecus), in the forest of Brenne.
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Sigiramnus’ relics were kept at the abbey of Saint-Cyran until 1860, when Eugénie de Montijo, Empress consort of the French, encased them in a reliquary and gave it to the church of Saint-Michel-en-Brenne.