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English: Aquila, Museo Nationale, Maestro di San Giovanni da Capistrano (Giovanni di Bartolomeo dell’Aquila), cc.1480-1485. The four side panels represent scenes of the saint's life [counter-clockwise]:

in the upper left panel, Holy Mass celebrated on the battle field in the presence of the Crusaders below it, the Battle of Belgrade, where the Crusaders fought against the Turks in the top right panel, a sermon given by St. John in L'Aquila, during which some possessed people were healed. in the background is the Cathedral of St. Maximus, as it would appear before the catastrophic earthquake of 1703 that destroyed it almost completely. in the lower right panel, the death of the saint.

The panel, dated between 1480 and 1485 (and then just thirty years after the death of the saint) was first attributed to Sebastiano di Cola from Casentino; later on, to a "Maestro delle Storie di S. Giovanni da Capestrano", who also authored "St. Francis Receiving the Stigmata", stored in the same room of the museum. According to the latest studies, this Maestro should be identified with Giovanni di Bartolomeo from Aquila, as recorded in Naples by a notary deed of June 1448: this painter shows a Gothic formation in his meticulous attention to detail, and a Renaissance influence in the use of perspective and volumes.