canon query about Sense and Sensibility

Is it just in the film adaptation that Colonel Brandon's first name is Christopher, or is it in the novel? Did Jane Austen ever reveal his first name, or did Emma Thompson choose it? All my books are packed, and I can't find any evidence of his name being Christopher anywhere except IMDB.

Edit: I am assuming that if Jane Austen ever did give his first name that it would be Christopher, since I don't think Emma Thompson would have changed it (unless his name was John, since there were a dozen other Johns in the book).

'Nother edit: Awake, awake, awake. Not happy about it. It's too late to wash the pots and pans -- CLANK, CLUNK -- so they're soaking, but the rest of the dishes are done and put away. Am working on my next contribution to 1sentence, and my pairing this time should be obvious, given the icon and the original content of this post. It's as close as I'll ever get to my AU S&S fanfic, I think. Each sentence has to have something to do with both characters, so a lot of the stuff in the original fic won't be used in any of the sentences, but I am able to use some of it at least.

I'm not supposed to claim my pair until I have my fifty sentences ready to go, so I'm slogging away at them until I'm sleepy. I have as many concepts down as I have sentences, so that's something, at least.