The place where the University of Edinburgh now stands was once the site of the church of St Mary in the Fields or, as it is usually called, Kirk o'Field. On a February night in 1567, in the small house close to the church, there occurred what is certainly the most frequently discussed event in the history of Scotland, the murder of Henry Stuart, Lord Darnley, consort to Mary Queen of Scots. Much discussed it has been, but since it is still not properly resolved it merits another look.