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The painting depicts the mystery of Calvary, with Jesus Christ crucified, and at his feet three characters. On the left side the Virgin Mary, to the right the Apostle St. John, and at the foot of the cross, a blurred figure in the background that traditional historiography has interpreted as that of hermit, but which recent studies have associated with St. Peter the Apostle, on the scene of sacred history and the iconography of 'the tears of St Peter'. Sustained interpretation in an inventory of 1620 in which the following reference appears: hallo en la iglesia en el altar un/ cuadro grande de un Cristo crucificado/ con Ntra. Señora y San Juan y San Pedro a los pies/ que es la inspiración”.