A tondo (Italian: 'round') is a circular painting or relief sculpture, most associated with Italian Renaissance art of the 15th and early 16th centuries. The format was frequently used for devotional images intended for private homes — Madonnas with the Christ Child, the Holy Family. The circle lent itself to intimate devotional use: it fitted into a wall niche or could be hung in a domestic room without the formality of a rectangular altarpiece. Michelangelo's Doni Tondo (1506), painted for the Doni family in Florence, is the most celebrated example — a tightly composed Holy Family in which the figures twist and interlock with extraordinary energy. Botticelli painted several tondi of the Virgin and Child. In modern art, the circular format has been periodically revived for its departure from the standard rectangular canvas.