Robertstown Castle is located in the grounds of Robertstown House, halfway between
Moynalty and
Nobber. The castle was part of the O'Reilly family's holdings, until the land was sold upon the death of Valentine O'Reilly. The last O'Reillys to live in Robertstown House, adjacent to the castle, were Valentine & Kay O'Reilly & their children Stephanie, Pauline, Patricia, Charles, Joan, & Bernadette. Said children used to play in the castle in the 1940s and 50s, but now the ruins are protected from entry. ==History==