Donore Castle, Co. Meath

Donore Castle, County Meath, in May 1987. 
An Irish National Monument in state care. It is typical of the tower houses that were built along the edge of the Pale for defensive purposes. This small tower houses are often referred to as £10 castles, as they are believed to have been grant aided. 
Such small fifteenth century castles are sometimes considered to be a prototype for the more elaborate later tower houses.