 The Ó Buachalla's claimed to be descendants of the cowherd of St. Manchán or Manahan and hereditary bearers of his shrine, the custodians of which were the O'Moonys of Doon, County Offaly.The last reference to the site as a monastery comes in 1205 when the death of the coarb (a type of administrator), Gillebrenyn O’ Bichollye (Buckley), is recorded.There was also a sept in northeast County Cork at the same time.