Maurits Cornelis Escher (1898-1972)'(Cloister near) Rocca Imperiale, Calabria', signed and no. 4/40 lower left, 'Convento presso Rocca Imperiale (Calabria)' lower right, February 1931, lithograph. H. 23.1 cm. W. 30.7 cm. Provenance: the Patijn family, friends of Escher. In 1943 Escher had to leave his house by order of the German Wehrmacht. From that time he and his wife lived a few years together with the Patijn family in their Villa Ekeby, Baarn. Literature: 'Leven en werk van M.C. Escher' by Bool et al., Meulenhoff Amsterdam, no. 145.