14th C. – Merrion Castle, Co. Dublin
Merrion Castle was a medieval castle situated in present day Mount Merrion.
1520 – Dunguaire Castle, Kinvara, Co. Galway
Dunguaire Castle, the principal towerhouse of the O’hEidhin clan,
1550c – Rockfleet Castle, Co. Mayo
Rockfleet Castle or Carraigahowley Castle (Carraig-an-Cabhlaigh), is a tower house near Newport.
1572 – Aughnanure Castle, Oughterard, Co. Galway
The castle was built by the O’Flahertys in the 16th century,
1583 – Rathfarnham Castle, Co. Dublin
The date of the foundation of the Castle is uncertain,
1588 – Enniscorthy Castle, Co. Wexford
Detached two-bay three-storey over basement medieval castle, rebuilt 1588,
15th C. – Caislean Sean Muckinish, Ballyvaughan, Co. Clare
Ruined tower house on the coast just outside Ballyvaughan.
15th C. – Castle Matrix, Rathkeale, Co. Limerick
The castle was built as a fortress during the early 1400s by the 7th Earl of Desmond.
1600 – Gleninagh Castle, Co. Clare
Gleninagh Castle is a well-preserved sixteenth-century tower house stands guard over the northern shoreline of the Burren.
1600c – Hatch’s Castle, Ardee, Co. Louth
The smaller of the two castles on the street,
