The Convent of St Agnes holds the National Gallery's medieval art: altarpieces, panel paintings and carved saints from Bohemia and central Europe, shown in the rooms of a thirteenth-century Poor Clare house. Downstairs the two brick churches and the cloister are left bare, cool and usually empty, so you cross from a full gallery into empty rooms inside one building. A garden with modern sculpture runs down towards the river wall. Agnes, who founded all of it in 1231, was a king's daughter who refused the marriages arranged for her.
One of the matches she refused was an emperor. Agnes took the Poor Clare habit instead and built this house with her brother, King Wenceslas I, then ran it for decades. What you walk through now is a rescue. The buildings were restored between about 1900 and 1914, and the National Gallery brought the medieval collection here in 1963. That decision is why the rooms work: the altarpieces upstairs were painted for churches like the two downstairs, and here they hang inside one. Go down afterwards and stand in the bare brick nave, and you can see what they were made to be seen against.