The Crucifixion, ca. 1315?20, Tempera on wood, gold ground, Overall, with engaged frame, 25 1/4 x 18 5/8 in. (64. 1 x 47. 3 cm), painted surface 22 1/4 x 15 3/4 in. (56. 5 x 40 cm), Paintings, Attributed to Ugolino da Siena (Italian, Siena, active by 1317?died? 1339/49), Famous in Florence as well as Siena, Ugolino was a close follower of Duccio, from whom he derived his remarkable sense of color and use of gesture and expression, creating an effect at once lyrical and tragic