OFFALY gets its name from the O’Connors who were known as O’Connor Faly and were descended from Ros Failghe, son of Cathair Mor, King of Ireland in the second century AD. The O’Connors took their name from Conchuibair who died in 977. The O’Connor
Like all other cities, the story of the origin of Edinburgh, the ancient capital of the Kingdom of Scotland. In the "Myrvian or Cambrian Archaeology" mention is made of Caer-Eiddyn, or the fort of Edin, which was the stronghold of a famous chief, Myndoc,
The surnames Beirne and O'Beirne are not related to the O'Byrne clan, and in Ireland this name is mostly found in the west. The O'Byrne surname is still very common in Wicklow and Kildare.