1520 – Dunguaire Castle, Kinvara, Co. Galway
Dunguaire Castle, the principal towerhouse of the O’hEidhin clan, is located to the east of the village.
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, but recent research would suggest 1583 as the most likely date.
1588 – Ennscorthy Castle, Co. Wexford
Detached two-bay three-storey over basement medieval castle, rebuilt 1588, originally on a square plan possibly incorporating the fabric of Norman castle which was founded in 1205.
15th C. – Caislean Sean Muckinish, Ballyvaughan, Co. Clare
Ruined tower house on the coast just outside Ballyvaughan. The Castle of Shanmuckinis,
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, Hatch’s Castle with its unusual rounded corners is a private home.
1600s – Blayney Castle, Castleblayney, Co. Monaghan
The area of Muckno and Ballynalurgan was granted to Sir Edward Blayney under the Plantation of Ulster in 1607 and 1611.
