Lorenzo di Pietro (lōrĕnˈtsō dē pyāˈtrō) [key], c.1412–1480, Sienese painter, sculptor, and goldsmith, called Il Vecchietta. He painted a group of frescoes and a relic press in the hospital at Siena; four ceilings in the Baptistery of San Giovanni at Siena; an altarpiece, The Assumption of the Virgin, his masterpiece (cathedral, Pienza); a triptych, Madonna with Saints (Uffizi); St. Catherine and the Virgin of Mercy, fragments of frescoes (Palazzo Pubblico, Siena); and a Madonna (Siena). Lorenzo was one of the most important painters of the later Sienese school. He also executed many sculptures, including The Risen Christ (Santa Maria della Scala, Siena) and a bronze relief, The Resurrection (Frick Coll., N.Y.).
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