 After the publication of "The Sunne in Splendour", Penman began work on the Welsh Trilogy, set primarily in Wales.The "Welsh Trilogy" was followed by the "Plantagenet series", which presents the events of the life of King Henry II and Eleanor of Aquitaine.Penman's settings are all in the Middle Ages; the Welsh Princes trilogy is set in the 13th century, two centuries earlier than "The Sunne in Splendour".