I highly recommend Shayne Parkinson's quartet of books which begins with
Sentence of Marriage, which is a free ebook available at
Smashwords (and probably elsewhere; the other 3 books in the quartet are $1.99 each, so it is hard to go wrong). I read them and thought they were some of the best books written in the past few years. (You can read my reviews
here and
here. FWIW, Shayne is a MR member.)
I couldn't stop reading them and often stayed up until the wee hours. When I was done, I handed my Sony 505 to my wife and told her to try them. History repeated itself -- she couldn't put the books down.
We have recommended these historical novels repeatedly to friends and those who read them have reported them as being 5-star books that they couldn't put down.