Sale of the murals of Mur Historical milestone · Castell de Mur, Pallars Jussà, Lleida Image of Castell de Mur, not of the place itself. The Romanesque paintings of the central apse of Santa Maria de Mur were removed by strappo in 1919 by Italian specialists and bought in 1921 by the Museum of Fine Arts of Boston. Those of the side apses reached the museum in Barcelona in 1961. 1919-1921 Photo: Gustau Erill i Pinyot (CC BY-SA 3.0) What to see and do in Castell de Mur