This is a beautiful etching reproduction by french artist Nicolas Xavier Willemin, depicting the tomb of John, son of St. Louis. It is an example of the ornate tomb styles of the 13th century. The title reads "Tombeau en bronze doré et émaillé de Jean fils de St. Louis (1247)" (Gilded bronze and enamel tomb of John, son of St. Louis (1247)). This print is part of a larger book by the artist Nicolas Xavier Willemin (1763-1833), titled Monuments français inédits pour servir à l'histoire des arts depuis le VIe siècle jusqu'au commencement du XVIIe, published in 1839. I have several of these beautiful etchings listed and these would make a stunning wall display grouping.