The first people in Laois were bands of hunters and gatherers who passed through the county about 8,500 years ago. They hunted in the forests that covered Laois and fished in its rivers, gathering nuts and berries to supplement their diets.

Next came Ireland's first farmers. These people of the Neolithic period (4000 to 2500 BC) cleared forests and planted crops. Their burial mounds remain in Clonaslee and Cuffsborough.

By the first century AD, the western third of Laois was part of the Kingdom of Ossory. The eastern part was divided roughly into seven parts, which were ruled by the Seven Septs of Loígis: O’More (O’Moore), O’Lalor, O’Doran, O’Dowling, O’Devoy (O’Deevy), O’Kelly and McEvoy.

The county name of Laois derives from Loígis, of which the modern county is only a part. In the 11th century, its dynastic rulers adopted the surname Ua/Ó Mórdha (O’Moore). They claimed descent from a member…