Right now, I am reading The Autobiography of Henry VIII, by Margaret George. It's fiction, of course.
The set-up is that Henry wrote his memoirs when he was old and sick, and gave them to his "fool", Will Somers. About 10 years after Henry's death, early in the reign of Queen Mary, Will Somers is sending the journals to Catherine Carey, Henry's probable daughter by Mary Boleyn. It's the premise for hearing Henry's life story from his own point of view, with occasional snarky and/or insightful comments from Will Somers.
I have eclectic taste in books and read many, many genres -- but I do love well-written historical fiction.