This request is from Ijin, who is searching for a book from long ago, about a period of time even longer ago, with redheads:
This is about a book I've read long ago, maybe in the 1990s and unfortunately I don't know the author or the title – obv, otherwise I wouldn't be bothering the bitchery.
It's a medieval historical. The heroine and hero are both redheads and she seeks him out because her husband cannot have children.
After one night together, he is in love and she is gone.
So he leaves for the crusades (and doesn't like girls anymore because they are mean and break your heart.)
When he comes back, he becomes the new lord of the place where she lives. She is now a widow and has a red-haired son who happens to look quite like our hero, etc., etc., HEA.
PLEASE. It has been driving me mad. I need to know.
Those rescally redheads, always after your lucky charms, or your sperm, or maybe both. Do you recognize this book?