‘I had thought the Prussians lacked the nerve for war.There we were, on the eve of Austerlitz, and the Russians and Austrians thought I was as good as beaten. It was only then that the Prussians decided to throw in their lot with my enemies and demand that I let them broker a peace. And after Austerlitz?’ He sniffed with contempt. ‘Frederick William sends me his congratulations on a magnificent victory.The man has the heart of a mouse. He could not sign a treaty with us fast enough.At one stroke of the pen I had humiliated Prussia and left Britain to continue the fight alone . . . And now my spies tell me that Prussia is planning to make war on France. Why? Why do they want war?’

Josephine tugged his hair gently. ‘Perhaps because you humiliated them too much.You might have heeded Talleyrand’s advice and treated them more leniently. I’m no diplomat, but I would have thought that another nation is more likely to remain an ally if it is treated well, rather than having its pride ground underfoot.’

Napoleon rolled over and propped himself up on an elbow so that he could look down at his wife. ‘I treated them as leniently as they deserved under the circumstances.’

Josephine raised her eyebrows. ‘You might think so, but from their point of view the treaty might not look lenient. I think that’s your trouble, my love.You cannot see the world through other people’s eyes. You live only for your ambitions, and are inclined to treat others as a means to that end. Talleyrand is always telling me that there can never be a lasting peace while nations are unwilling or unable to see things from each other’s perspective.’

‘Talleyrand.What does he know?’

‘More than enough to make a fine statesman. Otherwise you would not depend upon him so much.’

‘I do not depend on him at all. I do not depend on anyone,’ Napoleon added coldly, and then his mouth flickered into a smile. ‘Except you, my darling. And as you pointed out, you are no diplomat. You could not understand such affairs. Prussia, and the other powers of Europe, resent the dominance of France.They resent me.They will not be won round by reason.They must be controlled with an iron fist, and once they know the limits of my tolerance and abide by them, then we shall have peace.’

‘Perhaps this peace of yours will, in their eyes, look like subjugation.’

‘It is possible. But that is not important. As long as they do as I wish they can have their peace.’