This panel is by an anonymous Hispano-Flemish painter active in Burgos and Palencia who was influenced by Diego de la Cruz and the Master of Los Balbases. His name derives from his best known work, the Altarpiece of the Visitation in Palencia Cathedral. The apostle can be identified by the inscription on his halo and his attributes: the pilgrim’s staff, water gourd, hat and cockle shells. In his l