River Dargle in Bray, County Wicklow
|Native name||An Deargail|
|Main source||Wicklow Mountains|
|River mouth||Irish Sea at Bray Harbour|
The River Dargle (Irish: An Deargail, meaning "little red spot", so called with reference to the prevailing tint of its rocks) rises in the Wicklow Mountains of Ireland on the northern slopes of Djouce Mountain and flows over the highest waterfall in Ireland, falling 121m (398 feet) at Powerscourt Waterfall. It then flows through the Glencree Valley where it is fed by the River Glencree before flowing east for a further 14 km (8.7 mi) to reach the Irish Sea at Bray Harbour.
The Battle of Bloody Bank
In August 1402 the O'Byrne clan of County settled a large mercenary army, composed mainly of their relatives, the O'Meagher clan, at the Dargle near Bray. The authorities in Dublin received advance warning of the intended raid from the Walsh family of Carrickmines, whose lands stood directly in the path of the mercenary army. Led by John Drake, who was three times Lord Mayor of Dublin, the citizens of Dublin, and the Walsh clan, scored a decisive victory, commemorated as the Battle of Bloody Bank, over the O'Byrnes and O'Meaghers on the banks of the Dargle. The slaughter was so terrible (one estimate puts the death toll at 4000, although this was probably an exaggeration)  that the area became known as Bloody Bank, until it was renamed in the nineteenth century as Sunny Bank. The outcome greatly improved the security of Dublin, and seriously weakened the power of the O'Byrne clan.
Sir Walter Scott visited the area in 1825 and mistakenly assumed that Dargle was the name for any glen, etc. He used the word in his novel Redgauntlet seven years later: Glen, nor dargle, nor mountain, nor cave, could hide the puir hill-folk.
About 1838 the eminent judge Philip Cecil Crampton, who lived at St. Valery House, by the Dargle, became a supporter of the temperance movement: to show his fidelity to the cause, he emptied the entire contents of his wine cellar into the river.
The folk song Waxies' Dargle makes an indirect reference to the river. Non-religious holidays in Dublin - especially tradesmens' days off - were traditionally referred to as a "Dargle Days" (from the habit of the Irish upper classes, of travelling off to the banks of the Dargle, to picnic and engage in field sports such as tennis, on such days). The "Waxie's Dargle", on the other hand, is a humorous reference to the annual outing of the Dublin shoe-makers and repairers (who were known as "Waxies", from their habit of periodically running a ball of wax along the string as they stitched) to Irishtown on the River Dodder.
- Some sources give the year as 1401, but the balance of the evidence is that it was 1402
- 400 is a more realistic estimate of the casualties.
- O'Byrne, Dr. Emmett "O'Byrne promised to be loyal to the KIng" Irish Independent 18/04/2012
- Notes and Queries, January–June 1898
- Ball, F. Elrington The Judges in Ireland 1221-1921 John Murray London 1926 Vol. 2 p.282
- Bernard Share: Slanguage, A Dictionary of Irish Slang. Dublin, Gill and McMillan (1997 and 2005) ISBN 0-7171-3959-X
- Quidnunc (9 October 1933). "An Irishman's Diary". The Irish Times. p. 4.