A Greystone Christmas (Saber Dance Series, book 3)

Hidden secrets avoid judgment, but revealed bring new light of healing.
Jasper Mills, Earl of Glastonburg, had rather be called bastard than Earl. His half sisters call him Bastard Earl. He was claimed by his father, and was given the name Mills because he had no legitimate sons. As a boy, he had more than most lowborn commoners. He made his own way and became a champion pugilist. He had highborn friends, but avoided the peerage.
Then he met Trisha Renfield who he hid the truth from. She wasn't highborn, he liked her father, but he feared she too would judge him if she learned the truth about his title and his birth.