1290c – Baggotrath Castle, Dublin
Baggotrath Castle was built in the late thirteenth century, in the vicinity of what is now Upper Baggot Street.
1290s – Thomondgate Bridge, Limerick, Co. Limerick
Thomondgate was part of the “Northern” Liberties granted to Limerick in 1216.
12th C – St. Cronan’s Church, Roscrea, Co. Tipperary
Surviving west gable of the 12th-century Romanesque church in Roscrea. This church was in use until 1812 when most of it was demolished with the exception of this gable.
12th C. – Innesfallen Oratory, Killarney, Co. Kerry
A small single cell Hiberno-Romanesque oratory with a fine romanesque window built from red and yellow sandstone.
12th C. – Round Tower, Kildare, Co. Kildare
The 32-metre round tower in Kildare is the second tallest in Ireland.
12th C. – St Michael le Pole, Dublin
St Michael le Pole, between Chancery Lane and Ship Street, “St Michael of the Pool”
12th C. – St. Flannan’s Oratory, Killaloe, Co. Clare
Standing in the graveyard to the north of Killaloe Cathedral is St Flannan’s late 11th or early 12th century oratory.
12thc C. – St. Mo-Diomog, Clonkeen, Co. Limerick
The monastery was founded by St Mo-Diomog, in the 6th-7thc. A small rectangular church with antae at E and W end.
12thc. St. Kevin’s Kitchen, Glendalough, Co. Wicklow
St. Kevin’s Church better known as St. Kevin’s Kitchen is a nave-and-chancel church of the 12th century.
1302 – Franciscan Friary, Castledermot, Co.Kildare
Founded in 1302 by Thomas, Lord of Ossory and plundered in 1317.
