Beautiful Beast (The Marriage Maker #36)
Pearl Darling

Lord Raphael Barden, however, has far too much success with the ladies. Embroiled in an affair with the Prince Regent’s mistress, London’s most celebrated artist finds he can only focus on one thing, locating the woman whose portrait he has tried to paint from memory, and yet whose features he has failed to capture.
The only clue Raphael has to the tantalizing woman is the card to a certain Lonely Hearts Club that she inadvertently dropped at his feet on the day he saw her…