What is the population of Letterkenny?
Letterkenny
By the early 17th century the name Uí Canannain had been anglicised to O'Cannon. Further anglicisation took place during the Penal Laws in the late 18th and early 19th centuries and the name in Co. Dun na nGall became Cannon. In the early 1880s, there were just 200 families bearing the Cannon surname living in Co. Donegal, who were mainly tenant farmers. The Cannons/O'Canannains were of the ancient sept of Cenell Conaill, a branch of the northern Uí Néill and descend from Ruaidrí ua Canannain (died 30 November 950), King of Cenel Conaill, and grandson of Canannain, who flourished in the second half of the 9th century. The site of the ancient seat of the Ó Canannain was near Letterkenny (the largest town of County Donegal only since the 1950s), which is said on good authority (?) to represent the countryside of the O'Cannons (English translation).