This building in the Vienne area of Blois (on the southern side of the river Loire) is an ossuary (Fr. aître). We had hoped to visit it with our friends Rosemary and Jean Michel, but it is only open on the Journées du Patrimoine these days. Rosemary tried to get the key from the tourist office, but couldn't find anyone who could help.
Inside it is a galleried building similar to a cloister (and apparently many people mistake it for a cloister). The column capitals on the south gallery have the figures of a danse macabre carved into them, so I was disappointed not to get a look. The building was constructed between 1516 and 1520 and used as a cemetery until 1807, when it was converted into the laundry for the General Hospital. Finally in 1933 the building was handed over to the town of Blois and became a museum for medieval masonry and architectural sculpture. In particular it houses the salvaged masonry and sculpture from the houses in Blois that were destroyed at the beginning of the Second World War.
It is one of only four cemeteries of this kind remaining in France.
L'Aitre St Saturnin par elleuleu