Bonamargy Friary is situated in County Antrim, Northern Ireland, off the Cushendall Road on the approach to Ballycastle. The name Bonamargy means ‘foot of the ’, the river formed by the joining of the and . Perhaps the friary's most famous resident was the 17th century prophet and recluse Julia MacQuillen. Known as "The Black Nun", MacQuillen wished to be buried at the entrance of the chapel so that she might be trodden under the feet of those who entered. A worn Celtic cross (rounded with a hole in the centre) marks her grave at the west end of the main church.