Every time I visit this church the same woman looks for money within two or three minutes of my entrance. Today, there was also what appeared to be a homeless man sleeping in the church. It is distressing to see so many people having to survive in this manner.

John's Lane Church opened in 1874 on the site of St. John's Hospital (founded in 1182). It is located on Thomas Street, Dublin, close to the centre of the medieval city, and is served by the Augustinian Order.

The original hospital on the site was constructed by Aelred the Palmer, a Norman living in Dublin, after a safe home-coming from an arduous pilgrimage to the Holy Land. He founded a monastery of Crossed Friars under the Rule of St. Augustine who would also manage a hospital close-by, the Hospital of St. John of Jerusalem. The monastery was dedicated to St. John the Baptist and stood just outside the city walls, and so was known as St. John's church without Newgate.

In 1316 Edward Bruce marched towards Dublin at the head of his army, with the intention of besieging the city. The Dublin citizens, to prevent any danger from his approach, by common consent set fire to Thomas Street, but the flames laid hold of St. John's church and burned it to the ground, together with all the nearby suburbs.

About the commencement of the 18th century an Augustinian Prior rented for their use as a chapel a stable on the western side of St. John's Tower, a surviving fragment of the Hospital. About 1740, on the site of part of the Hospital, was erected a small church 60 feet (18.3 m) by 24 feet (7.3 m), which was considerably extended 40 years later.

In 1860 it was decided to build a new church. The architect was Edward Welby Pugin, whose father was Augustus Welby Pugin, and assisted by his Irish partner and brother-in-law George C. Ashlin a native of Cork.

Construction on the modern church was commenced at Easter 1862 under the leadership of Fr. Martin Crane, but it took 33 years to complete. One problem was that the foreman and many of the workmen were Fenians, who got in trouble with the authorities in 1865 and afterwards - for this reason the church was nicknamed "The Fenian Church".

The spire, designed by William Hague, and roof were completed in 1874, when the church was opened for masses. The exterior was completed by 1895 and the interior by 1911.

The church is named after St. Augustine and St. John the Baptist, but is popularly known as John's Lane Church, from its location at the corner of John's Lane.

The church steeple is the highest in the city, standing at over 200 feet (61.0 m). It was originally not designed to hold bells, but a spiral staircase was added later to provide access to bells. The Bell Ringers Company of John's Lane was formed in 1872 and the bells were first rung on St. Patrick's Day 1873.

The twelve statues in the niches on the tower are the work of James Pearse, father of Patrick Pearse and Willie Pearse. The stained glass in the apse is by Mayer of Munich. The windows are by the Harry Clarke studio and Michael Healy.

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