The Once and Future Duchess

Rita Award-winner Sophia Nash's Regency romance The Once and Future Duchess is "warm and wickedly fun" (#1 New York Times bestselling author Julia Quinn).
A duchess in time saves a noble line...
In theory, the Duke of Candover is the most eligible peer in the realm. But in truth, he has a deep aversion to the merest hint of marriage, not to mention two botched engagements which have marked his jaded soul. Now, after a debauched bachelor party that causes public outcry, the Prince Regent is demanding that it's Candover's turn to be brought to heel. And Prinny secretly believes that Isabelle Tremont, the Duchess of March, is precisely the lady up to the challenge.
Isabelle must marry, but a day of reckoning with the man she's loved for years is her greatest fear. If Candover insists she's too young and innocent for a seasoned world-weary man like him, there's no shortage of other candidates. Gentlemen of prestige and position. Gentlemen whose attentions are driving Candover to jealous distraction. Yet one abandoned moment under the stars hints that if they can put aside pride and duty, then a love once denied might just be their destiny.
Royal Entourage
Between the Duke and the Deep Blue Sea
The Art of Duke Hunting
The Duke Diaries
The Once and Future Duchess