A British art historian’s painstaking study of the cathedral in Santiago de Compostela uncovered a medieval prank

He is a medieval in-joke, a male figure carved in the early 12th century for one of the world’s greatest cathedrals, but no one has known of his existence until now. The figure has gone unnoticed by millions of worshippers who have made the long pilgrimage to Santiago de Compostela in Galicia, north-western Spain over the centuries. He has looked down on them from the top of one of the many pillars that soar upwards, each decorated with carved foliage, among which he is concealed.

Now he has been discovered by a British art scholar who believes that he was actually never meant to be seen because he is a self-portrait of a stonemason who worked on the cathedral in the 12th century.