After the death of Matthew de Crambeth, Bishop of Dunkeld, in 1309, William Sinclair was elected by some of the chapter to the bishopric.
John le Leche, however, was elected soon afterwards, and had the support of King Edward II of England.
The diocese of Dunkeld lay vacant for three years, while the issue was contested at the Papal see.
Pope Clement V appointed James, Cardinal Deacon of St George in Velabro, to judge the issue; but this was resolved when, on 22 May 1311, John de Leche was promoted to the Archbishopric of Dublin.
It had no connection with the present day Trinity College Dublin, which was founded in 1592.