Marian's Christmas Wish by Carla Kelly
From Goodreads.com:
Miss Marian Wynswich is a rather unconventional young lady. She plays chess, reads Greek, and is as educated as any young man. And she s certain falling in love is a ridiculous endeavor and vows never to do such a thing. But everything changes when she receives a Christmas visit from someone unexpected--- a young and handsome English lord.
