Margrave Eberhard von Friuli and his wife Gisela , who married around the year 836, are considered the founders of Cysoing Abbey . Gisela was the daughter of Emperor Ludwig the Pious from her second marriage. In the year 854 Pope Leo IV gave Eberhard the relics of the 222 deceased Bishop of Rome Calixtus , which Eberhard had transferred to Flanders. With these relics he equipped the Cysoing Monastery, which was founded in the year of the donation or shortly before together with his wife. In addition, the couple gave the monastery the fiscal goods in Cysoing and Vitry-en-Artois . After Eberhard's death in 866, Gisela expanded the monastery property to include other goods, for example in Somain . Eberhard and Gisela, who died after 874, were buried in the crypt of the abbey church. Their son Rudolf († 892) became - also after 874 - abbot of Cysoing and subordinated the abbey directly to the archbishop of Reims , although the abbey was in the territory of the diocese of Tournai . In 891, the legal status of Cysoing as the archbishop's own monastery was confirmed by the translation of Calixtus relics.
Around 90 years later, around 1082, the Lords of Cysoing and Petegem appeared as Bailiffs of Cysoing. In 1129 Anselm, a canon of the Reims Abbey of Saint-Remi, was appointed abbot of Cysoing, because monastic life in Cysoing was so secular that reforms seemed urgently needed. The canons of the abbey then submitted to the Augustinian rule and probably joined the Arrouaise order in 1132 . About a century later, it joined the Congrégation de Saint Victor , that is, the order of the Augustinian Canons of Saint Victor . After the monastery reform, Dietrich von Alsace and his son Philipp , the Count of Flanders , gave the abbey the Hertsberge estate , which, along with Somain and the local Prieuré de Beaurepaire, became the economic base of the monastery.
In 1193, King Philip II of France married the king's daughter Ingeborg of Denmark . The marriage was divorced in 1196 and Ingeborg was first imprisoned in the Cysoing Abbey and later in the Étampes Castle. At the battle of Mons-en-Pévèle on August 18, 1304, the Flemish troops pitched their camp in Cysoing. In 1792 the abbey was pillaged by revolutionaries and burned down the following year.
- On the eve of the Battle of Fontenoy (May 11, 1745), King Louis XV stayed. in the abbey; In memory of this, the Fontenoy Pyramid was erected in 1750 , which is actually a 17 meter high obelisk . The obelisk has had the status of a monument historique since 1840 .
- At the beginning of the 19th century, the Château de Cysoing was built on the site of the abbey and partly from the stones of the ruins , an imitation of the Petit Trianon in Versailles. The château has also had the status of a monument historique since 2008, and its garden is included in the Inventaire général du patrimoine culturel .
- Ignace de Coussemaker (ed.), Cartulaire de l'abbaye de Cysoing et de ses dépendances (1886)
- Translatio S. Calixti Cisonium, MGH Scriptores XV, pp. 418-422
- Flodoard of Reims , Historia Remensis ecclesiae, MGH Scriptores XIII, 558, 569, 573
- J. Bataille: Cysoing - Les seigneurs, l'abbaye, la ville, la paroisse . 1934
- Geert Berings: Cysoing . In: Lexicon of the Middle Ages (LexMA). Volume 3, Artemis & Winkler, Munich / Zurich 1986, ISBN 3-7608-8903-4 , column 405 f.
- Dictionnaire d'histoire et de geographie ecclésiastiques . Volume XIII, column 1188f