1610 – Belfast Castle, Belfast, Co. Antrim John de Courcy built a castle on what is now Castle Street in the city centre in the 12th century. By the early 17th century when Sir Arthur Chichester,
1630 – Athlumney Castle, Navan, Co. Meath Constructed over several centuries – the classic form of the fortified Irish tower house visible as part of the Jacobean mansion.
