The British Museum, London.

Photo Scala, Florence. Courtesy of the Ministero Beni e Att. Culturali.

Photo akg-images/Erich Lessing.

Photo DeAgostini Picture Library/Scala, Florence.

Photo Scala, Florence.

Photo Scala, Florence. Courtesy of the Ministero Beni e Att. Culturali.

Photo White Images/Scala, Florence.

Photo Scala, Florence.

Photo Scala, Florence.

Photo The Bridgeman Art Library.

The British Museum, London.

Photo The Bridgeman Art Library.

Photo The Bridgeman Art Library.

Photo The Bridgeman Art Library.

Photo The Bridgeman Art Library.

Photo akg-images/IA M.

Photo The Bridgeman Art Library.

Photo Scala, Florence. Courtesy of the Ministero Beni e Att. Culturali.

Photo Scala, Florence. Courtesy of the Ministero Beni e Att. Culturali.

Photo akg-images/IA M.