5. It is not clear which work by
Delacroix is meant here; two works – both lost – are known as
Mater Dolorosa. By this title Van Gogh may mean the
Pietà which he mentioned later and copied; he knew it from the lithograph by
Célestin François Nanteuil-Leboeuf (
see letter 686, n. 3). Cf. Johnson 1981-1989, vol. 3, pp. 284-285, cat. nos. L176 and L181.