Rostov, the father, is Ilya, and his son is Nicholas.

I never knew any Madame Jacquot." Pierre shook his head and arms as if attacked by mosquitoes or bees.
"Oh dear, what am I thinking about?
I've mixed everything up.

One has so many relatives in Moscow! So you are Boris?
Of course.

Well, now we know where we are.

And what do you think of the Boulogne expedition?
The English will come off badly, you know, if Napoleon gets across the Channel.