His Valentine Princess — Marly Mathews

Once an incurable romantic, Lady Valentina Deville is determined to forsake a love match and marry a man who is deemed sensible minded and of great enough title and fortune to satisfy her father and mother, the Duke and Duchess of Alton.
Henry Russell, 6th Duke of Daventry is a rake with a great aversion to the idea of marriage. Battle hardened, the frippery and frills of the haut ton do not interest him. Urged to attend a New Year's Ball hosted by the Duke and Duchess of Alton, he is intrigued to see the belle of the season, Lady Valentina.
Her enchanting visage awakens something inside of him he longed believed to be dead. He decides to court her and make her his Valentine Princess. The only question is -- can he touch the romantic that still burns within Valentina's soul?