Eve Edwards.
Titles I've written about:
The Other Countess (2010):
It's got loads of witty banter and makes for lots of swooning. It's got two—count 'em!—TWO really likable female leads and tons of period detail. The storyline is, yeah, ultimately predictable, but in a good way, and it's got lots of unpredictable stops along the way.
The Rogue's Princess (2012):
So, the description of The Rogue's Princess up at Amazon says that this is the last book in the Lacey Chronicles. To which I say: BOOOOOOOOOOOOOOOO! True enough, neither of the sequels has quite lived up to the awesomeness of The Other Countess, but it's still a super-fun series, and there are plenty of characters who deserve their own book.