This is not a young adult novel and not fully historical fiction. However, the heroine is seventeen and this regency romance is so much more appropriate than most popular young adult fiction these days, I feel it is appropriate to include on my site.
After the death of her mother, Marianne Daventry is sent to live with her grandmother in Bath while her father takes his grieving heart to Paris. Marianne's twin Cecily, goes to London for her debut in society and to search out the gentleman she intends to marry. Eventually, both sisters are invited to Edenbrooke, the estate of their mother's friend, Lady Catherine. While in route to Edenbrooke, Marianne encounters a mysterious and flirtatious gentleman who both intrigues and angers her. He turns out to be Sir Philip, the son of Lady Catherine.
Trouble ensues as Marianne becomes friends with Philip, but learns he is the same man her sister intends to marry. Patterned after the manner of Jane Austen and Georgette Heyer, Edenbrooke is perfect for Regency period readers. It doesn't have the same level of wit or writing as Jane Austen, but it captures the feeling of that time period and a classic, clean romance.