John Le Decer
John Le Decer was a fourteenth-century Mayor of Dublin, who had a notable record of charitable works and civic improvement.
John Le Decer served as mayor on six occasions, in 1302, 1305, from 1307 to 1309 and in 1324. He was a man of considerable wealth, and carried out a number of noted public works "at his own expense".
He was married and had at least one daughter, Elena, who married Robert de Meones, of the prominent Anglo-Irish De Meones family who gave their name to the suburb of Rathmines in south Dublin. They had at least one son, John de Meones, who served three terms as Mayor of Dublin between 1331 and 1338.
Civil projects
Public water supply
His most striking project was the marble cistern he built in 1308. This held Dublin's main water conduit in Cornmarket, adjacent to St. Audoen's Church in the centre of the medieval city, a work "such as was never seen here before". It was commonly called "Le Decer's Fountain", and is so described on the 1400 map of St. Audoen's Church and parish. He set up Dublin's so-called "Lucky Stone" there, reputedly so that everyone who drank from the cistern should have good luck; it had previously been situated inside St Audoen's.Leeper, Alexander History of St Audoen's Dublin 1873Image:St-audoens.jpg|thumb|St. Audoen's Church and arch with the cistern, "Le Decer's fountain", marked in the centre of the map, to the left of the church