The painting, "The Apparition of the Angel to St. Roch", dates from the end of the 16th century, and is considered one of the best works by Gaspar Dias (act.1560-1590). The panel represents St. Roch stunned by the sudden apparition of the guardian Angel. Beside him a protecting dog brings food to the saint. The background scenery features an architectural composition inspired on Italian paintings of the late Renaissance. On the top of the retable, the oil painting represents the death of St. Roch in the prison, which is attributed to Gaspar Dias.