[1] It received its name during the episcopate of Alexander de Bicknor (1317-1349), when the parish of St. Nicholas was extended outside the city so as to include the Manor of St. Sepulchre and the Deanery of St Patrick.
[1] In records dating to 1509 and 1662 the parish church continued to be the north transept of St Patrick's Cathedral.
The north transept fell into disrepair in the 18th century, and the Lady Chapel (formerly called the French Church, as it had been used by the Huguenots) of the cathedral was rented by the parishioners of St. Nicholas Without for £30 per annum.
[3] In 1479 King Edward IV gave permission to John Chevir and other merchants of Dublin to endow a chantry in St Nicholas.
In 1708, an act of parliament was passed, dividing the parish of St. Nicholas Without, and giving part of it the denomination of St.