Stained-glass window V08, located along the Duomo's southern side, depicts Saint Agnes, Saint Thecla - both early-Christian saints of Roman and Milanese devotion - and the Madonna of the Snow with Saints Roch and Victor, to whom an altar was once dedicated in correspondence with the window itself. The work was commissioned by the Veneranda Fabbrica to Pompeo Bertini in 1897 and completed in 1905 by his son Guido.
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