Donore Castle Ruins

Donore Castle is a 15th-century tower house and National Monument in County Meath that may have been constructed with royal patronage—possibly one of the "£10 castles" subsidized by King Henry VI in 1429 to defend the English Pale. The castle's distinctive architecture includes rounded external corners and a projecting round tower on its southwest side, alongside typical defensive medieval features like spiral stairs and a "murder hole." Built by the McGeoghegans, the castle was seized by Cromwellian forces in 1650 and today stands as a 40-foot ruin in open farmland near historic Trim.