sentences:  St Mary's Isle Priory
  
  St Mary's Isle Priory was a monastic house of Augustinian canons located on the Isle of Trail or St Mary's Isle in Galloway.It is alleged Fergus, First Lord of Galloway (1138), granted then St. Maria de Trayl, (St. Mary's Isle) to the Monks of Holyrood Abbey, (The Abbot of Sancte Crusis) as confirmed by John, Bishop of Galloway, at the beginning of the thirteenth century.