‘She’s beautiful,’ I told him. ‘Hair like skeins of silk; deep, brown eyes that sparkle in the light like jewels; beautiful lips, deep pink, and as juicy as ripe fruit.’Ideas rippled in the pools of his eyes. ‘I must paint her,’ he said.1508. In Rome artists are everywhere, and feted as gods. But the most celebrated amongst them, a man who can paint beauty itself, is Raphael. When he touches brush to canvas, his subjects burst to life; he takes base metal and turns it to glistening gold.When...