I read this a few years ago ---- The heroine had a relative that wanted to marry her --- Towards the end I think she was kidnapped and actually locked in a coffin at the villains house --- The hero with the help of friends went and saved her -- I almost want to say there was a Bewcastle type of duke that helped the hero saved her .... That's all I can remember. Anyone?

Not sure if it's this one or not, but could it be Simmer All Night by Geralyn Dawson?  I remember it had the heroine locked in a coffin at the end.

Thought it was set in Regency england - carriages, etc... But this one sounds interesting too. Thanks for taking the trouble to respond!!!!

It doesn't fit exactly, but it reminds me of Say You Love Me by Johanna Lindsey. Although in that book, the heroine's uncle wants her to sell her virtue in order to rescue the family from financial ruin. But she is captured by an evil villain and the hero and friends save her, IIRC. I don't think that's the one and there are others tickling the back of my mind that could also fit. I will think on it some more.