[Facts] Re: Two questions on Russian names
Lavra exists as a proper noun in Russian, referring to a kind of monastery, and thus doesn't really have the right sort of associations to end up being given as a forename, I would suppose. Male Lavrenty (Lawrence) exists, coming from the same Greek root, but I've never seen a female cognate.
I lived in Russia for seven years or so and now work as a translator, and this Chappy thingy sounds very un-Russian to me.