Sharon Kay Penman (born August 13, 1945) is an American historical novelist, published in the UK as Sharon Penman. She is best known for the Welsh Princes trilogy and the Plantagenet series. In addition, she has written four medieval mysteries, the first of which, The Queen's Man, was a finalist in 1996 for the Best First Mystery Edgar Award. Her novels and mysteries are set in England, France, and Wales, and are about English and Welsh royalty during the Middle Ages. The Sunne in Splendour, her first book, is a stand-alone novel about King Richard III of England and the Wars of the Roses. When the manuscript was stolen she started again and rewrote the book.
The Sunne in Splendour is about the end of England's War of the Roses. In the book, Penman characterizes King Richard III as a healthy, if misunderstood, ruler. She chose to write Richard's character in such a way after becoming fascinated with his story and researching his life, both in the United States and in the United Kingdom, which led her to believe that "his was a classic case of history being rewritten by the victor."
More information, including details of her other books, on the Wikipedia page .