killiney church

The church was dedicated to a saintly daughter of Lenin who lived in the early 7th century. The southern portion of the church is the oldest. It consists of an apparently contemporary nave and chancel, with a rounded chancel arch and flat-headed doorway with a roman cross underneath it.

It possibly dates to the 11th or 12th century. Probably in the 16th century, though perhaps considerably earlier, the northern aisle was built alongside the existing church and it contains a round-headed east window.

Presumably at the same time the mullioned window was inserted in the south wall of the church. After the Dissolution it was given to the Dean of Christ Church, and in the 16th century was served by chaplains from Dalkey.