Glastian
Saint Glastian of Kinglassie was a bishop based in Fife who acted as a mediator in the wars between the Picts and the invading Scots.
His feast day is 28 January.
Heritage
The church in Kinglassie, which belonged to Dunfermline Abbey, was dedicated to Saint Glastian.It was near to St. Glastian's Well.
It is quite possible that the surname M'Glashan comes from Glastian.