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This image was painted on the cover of an account book belonging to Siena’s Biccherna, the most important financial group within the government. The names of members of that group at the time of the painting's commission are located in the inscription at the bottom. Book covers of this type often illustrated actual events from the city’s contemporary history in allegorical forms. Franceso di Giorgio Martini’s Madonna of the Earthquakes visually records the earthquakes that struck Siena during the summer of 1467. In the medieval period, natural disasters were not necessarily seen as the wrath of an angry God or a sign of the apocalypse. However, they were regarded as tremendous events that interrupted daily life. In such times of distress, people would often appeal to a patron saint for aid. When the tremors began, the Sienese commended themselves to the Virgin Mary and pledged to bring a generous ex-voto gift to the shrine of the Madonna della Quercia (Madonna of the Oak) at Viterbo if the danger were averted. The crisis passed, and an embassy laden with gifts was sent to the shrine. To the people of Siena, the Virgin was more than a cult figure. She was the defender, protector, and principal patron of their city. Acts of dedication to her were an important part of a powerful civic identity and ideology that was reinforced over time through subsequent acts of re-dedication. This painting incorporates a complex perspectival landscape composition. In the foreground, we see tents arranged in an arc formation on a hillside. A valley is located behind them, and a realistic representation of the city of Siena is located on the hill that fills the middle ground. The scene likely represents the view from a south-eastern vantage point with the gate of Porta Pispinin at the center, the northern district of Camollia hidden behind a ridge of hills, and the Montagonola ridge located to the west of the city. The Virgin Mary flanked by many angels hovers above the detailed, recognizable cityscape. The legend “at the time of the earthquakes” is boldly inscribed in capital letters between the divine figures and the city scene.