Floreffe Abbey, Premonstratensian monastery in Floreffe, Belgium

Floreffe Abbey is a Premonstratensian monastery on a promontory above the Sambre, about ten kilometres from Namur. Its dark red brick buildings with grey slate roofs include a long wing with rectangular windows and dormers, a tall square tower with a tiered spire and lantern, and a broad block with a steep roof and arched window. A lower wing with a second spire stands beyond, above a low stone wall and shrubs.

Norbert of Xanten founded the abbey on 27 November 1121 after Count Godfrey I of Namur and his wife Ermesinde offered him land at Floreffe; the first canons arrived in 1122 under Abbot Richard. It was the second house of the Premonstratensian order and soon established daughter houses including Postel (1138) and Leffe (1152). Abbot Thierry de Warnant (1342–1361) restored discipline after a 14th-century decline, and the 18th-century abbots Werdt, Dartevelle and Dufresne rebuilt the complex in neoclassical style before the French revolutionary forces suppressed it in 1796.

The abbey's motto, inspired by its name, is "Florete flores" (let the flowers bloom). The Premonstratensians of Floreffe served more than forty parishes, and the abbey founded daughter houses such as Postel (1138) and Leffe (1152). The 1165 Floreffe Bible, a celebrated illuminated manuscript from the abbey, is now held at the British Library in London.

Access to the grounds is seasonal, with guided tours primarily available during warmer months. Visitors should check current conditions beforehand, as opening hours and access to specific areas can vary throughout the year.

The abbey's motto, "Florete flores" ("let the flowers bloom"), was inspired by the name Floreffe. As one of Norbert of Xanten's own foundations, its abbot was one of three charged with the annual canonical visitation of the mother abbey of Prémontré. Its most celebrated manuscript, the Floreffe Bible of 1165, is now held at the British Library in London.