History & Info The Augustinian Priory of Abbeyderg is located in the cemetary of Abbeyderg about 5 km from Kenagh village. The priory was founded in the 13th century by Gormgal O’Quinn, Lord of Rathcline, chief of Muintir Ghiollagáin. Known as Mainisterderg or Dearg  it was dedicated to St Peter. The Abbey remained in existence until 1540 … Continue reading Abbeyderg Monastery