On the edge of Hainaut, a majestic architectural complex housesone of the most fascinating secrets of European medical history. A true medieval gem founded in the 13th century,the Notre-Dame à la Rose Hospital in Lessines opens its doors for a journey suspended in time. In this masterpiece of Gothic and Baroque architecture, the adventure continues within an exceptional museum housing rich collections of gold and silverware,astonishing surgical instruments, andauthentic pharmaceutical artifacts. Between bucolic strolls through the medicinal herb garden and historical mysteries, this enchanting sanctuary celebrates local craftsmanship with surgical precision!
Notre-Dame à la Rose: the fabulous history of the Hôtel-Dieu in Lessines
The origins of this unique place date back to the 13th century, born of devotion and a vow made in war. As the heiress of Lord Arnould IV of Oudenaarde, Alix de Rosoit chose to invest in the founding of a hospital for the poor. Established according to the Rule of St. Augustine, the hospital operated entirely self-sufficiently thanks to vast land donations and an adjoining 17th-century farm. The community produced its own food to provide for the sisters and the sick, forming a true citadel of charity.

Architecturally speaking, the site is a stylistic marvel. Unlike traditional open structures, the Lessines cloister—whose construction spanned nearly four centuries—is unique in that it is enclosed by large stained-glass windows, creating a space for prayer and meditation completely isolated from the outside world. Despite the French Revolution, a childlike resistance took root in local memory, with children playing pranks to blind officials and prevent them from removing the cross from the bell tower.
Unusual treasures and secret gardens: the experience of a timeless museum
Today, the site stands out as an exceptional museum space where time seems to have stood still. The preserved collections recreatethe intimate atmosphere of the convent: visitors discover Gothic furniture unique in Belgium, rich gold and silverware, and surprising works of art. The tour also delves into the heart ofthe history of science, from the ancient theory of the four humors toimpressive surgical kits. The interior tour culminates inthe 19th-centuryapothecary, which remains intact with its period woodwork.

The experience continues outdoors in the magnificent botanical garden. Designed according to the medieval model of the Herbularius, this green haven highlights the theory of signatures, which linked a plant’s form to its healing properties. Just off the path lies the historic ice house of the “Jardin du Bon Dieu”: an impressive underground brick well that stored ice from the Dendre River to treat the sick. A bucolic stroll that recalls Lessines ’s major role at the heart of a Belgian medicinal triangle.
📍Place Alix de Rosoit, 7860 Lessines