Kilwinning was a Tironensian Benedictine monastic community, named after Tiron in the diocese of Chartres. The abbey was dedicated to Saint Winning and the Virgin Mary, and founded sometime between 1162 and 1188 with monks coming from Kelso. The patron is not known for certain, but it may have been Richard de Morville, Lord of Cunninghame and Great Constable of Scotland, perhaps with the backing and assistance of King William of Scotland. A story developed that another Sir Richard de Morville who was involved in the murder of Thomas Becket was the founder of the abbey, however despite the likelihood of the families being the same, the dates of the events make this connection impossible. A connection that does exist is the founding of Arbroath Abbey in 1178, also a Tironensian abbey, in memory of Becket by William the Lion (1165–1214).