The Shadow of Seville In the bustling streets of Seville, where the light dances upon the stone of great cathedrals, Juan del Castillo began his life's work. Born in 1584, he was a man shaped by the traditions of his surroundings, finding his way into the mysteries of pigment and brush under the guidance of Luis Fernández. He was not a solitary soul in his craft; his brother Agustín also walked the path of the painter, and together the…