Seven years back, when Florence was besieged by the Emperor and begging for French aid, the burgesses went to the merchant Borgherini’s house: ‘We want to buy your bedroom.’ There were fine painted panels, rich hangings and other furnishings they thought might make a bribe for King François. But Margherita, the merchant’s wife, stood her ground and threw their offer back in their faces. Not everything in life is for sale, she said.