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Not on display
The sitter is identified from the letter he holds, which is addressed to 'Nobili Joanna Christophoro Longono Amico'. He is known to have been resident in Milan from 1494-98. The parapet bears an inscription meaning 'You know not what sort of person you were or will be; devote much time to an earnest effort to see what sort of person you are'.
The National Gallery, Trafalgar Square, London WC2N 5DN



