| Mongavlin Castle | |
|---|---|
| Near Lifford, County Donegal in Ireland | |
 Mongavlin Castle in June 2013 | |
  Mongavlin Castle | |
| Coordinates | 54°54′15″N 07°27′12″W / 54.90417°N 7.45333°W |
| Site information | |
| Condition | Ruin |
| Designations | RMP DG063-009[1] |
Mongavlin Castle, also known as Mongevlin Castle,[2] is a ruined castle on the west bank of the River Foyle, approx 3 km south of St Johnston, County Donegal, Ireland. It was once a stronghold of the O'Donnells, Lords of Tyrconnell.
- ^ "Mongavlin Fortified House (DG063-009)" (PDF). foylecivictrust.org. Retrieved 20 August 2020.
- ^ h., J. A. (1836). "Mongevlin Castle, County of Donegal". The Dublin Penny Journal. 4 (186): 240. doi:10.2307/30003540. JSTOR 30003540.