This was part of a monastery for the Order of the Most Holy Trinity, commonly called the Trinitarians, when founded circa 1230. The priory’s nickname was the White Abbey based on the color of the friars’ robes. The main benefactor for building the church in 1272 was John Fitzthomas Fitzgerald, 1st Earl of Kildare. After the Trinitarian Abbey was dissolved in the 1560s, their complex suffered a decline until it became a Catholic parish church in 1824. Much of the Gothic Revival appearance is credited to architect Philip Hardwick during a mid-19th restoration. Today, this is the Holy Trinity Abbey Church.
