SP
Sharon Kay Penman
Sharon Kay Penman was an American historical novelist, published in the UK as Sharon Penman. She was best known for the Welsh Princes Trilogy and the Plantagenet series. In addition, she wrote four medieval mysteries, the first of which, The Queen's Man, was a finalist in 1996 for the Best First Mystery Edgar Award.
Excerpt from Wikipedia, available under CC BY-SA 4.0.
Books

Time and chance
2003
ISBN 9780140270778
A King's Ransom
2014
ISBN 9780399159220