Judith Green is an English medieval historian, who is Emerita Professor of Medieval History at the University of Edinburgh. A graduate of King's College, London and Somerville College, Oxford, she held a research fellowship and then a lectureship at the University of St Andrews before transferring to a lectureship at Queen's University, Belfast. There she became a Reader and, eventually, Professor. In 2005, she took the professorship at Edinburgh, retiring in 2011. Specialising in Anglo-Norman England, her notable works include: The Government of England Under Henry I, (Cambridge, 1986) The Aristocracy of Norman England, (Cambridge, 1997) Henry I, King of England and Duke of Normandy, (Cambridge, 2006)