Orcagna, Andrea di Ciose, a Florentine artist of the 14th century, who excelled chiefly as an architect. He designed the marble-tabernacle in the church of San Michele, and was chief architect of the Orvieto cathedral. Some of his frescoes in the church of Santa Maria Novella, Florence, have ' been restored, and a panel picture executed for San Pietro Maggiore is now in the National Gallery, London. Other churches in Florence have altarpieces by him. He died some time between 1365 and ' 1 390. His elder brother assisted him in his painting.