protected elements are all the remains and the floors. In 2005, the international congress of the Analecta Cartusiana took place here. Architecture From the time of the monks Between 1598 and 1792, the charterhouse occupied an area of eleven arpents and 742 square feet, i.e., with a foot of 29.3 centimetres and an arpent of 24,000 square feet, an area of approximately 22,700 square metres in modern measurements. It thus occupied about 8% of the urban space of Molsheim. The monastery was divided into two parts. The part to the south-west, where the modern local hospital is located, contained the temporal buildings and spaces: farm, revenue and hostelry. To the north-east was the church, surrounded by the two cloisters of the fathers and brothers, themselves surrounded by the monks' cells. Around the present "Cour des Chartreux", on the east and south sides, were grouped the places of collective life: church, library, refectory, kitchen. The community aspect remained relative, however, as the fathers and brothers had different access to it. The church The layout of the church in the heart of the courtyard is quite unusual and contrasts with the general Carthusian practice of "large cloister" (fathers) and "small cloister" (brothers). A Carthusian church is generally a relatively sober building of limited dimensions. The church in Molsheim was an exception to this rule. About thirty-five metres long and eight metres wide, it was also richly decorated, the initial ornamentation being constantly completed and enriched until the Revolution. On September 2, 1606, Adam Peetz, auxiliary bishop of Strasbourg during the lay administration of Leopold V of Austria-Tyrol, laid the foundation stone on the site of the main altar. The construction of a church in this location required a great deal of consolidation of the soil, as a wooden foundation was necessary. The abbot of Altorf donated the trees needed for this consolidation, "as many as necessary". Outdoors After its completion, the church, with a single nave, had a very unusual plan. The nave, which is relatively short and was intended for the brothers, has only four bays, twelve metres in length with a surface area of about 95 square metres, while the choir, with five bays and the apse, with a length of twenty-one metres and a surface area of about one hundred and sixty square metres, represents two thirds of the space. Between the nave and the choir a high rood