Peter R. Coss is a British historian, specialising in the history of the English medieval gentry. He is Emeritus Professor of Medieval History at the School of History, Archaeology, and Religion at Cardiff University, Wales.[1] His research interests also include 12th- to 15th-century English social history and Italian history from the same period, as well as visual history/social display and literature and history.[1] As of 2008, he was working on a comparative project between the English gentry and the nobility of Tuscany, and another on the foundations of gentry culture.[2] Coss studied under Rodney Hilton. He is a member of the historical journal Past & Present, and also a former member of the council of the Royal Historical Society.[3]