grisaille (grĭzĪˈ, –zālˈ, Fr. grēzäˈyə) [key], a monochrome painting and drawing technique executed in tones of gray. Such works were often produced in the Renaissance to simulate sculpture, as in Uccello's equestrian portrait of Sir John Hawkswood (Cathedral of Florence). Painters of stained glass frequently used grisaille. In the 17th cent. grisaille was prized for interior decoration.
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