Carnfree (Irish Carn Fraoich, Fráech's cairn) is a site south of the village of Tulsk in Roscommon that also lies close to the more celebrated ancient landscape of Rathcroghan.
The chief feature here is the bronze-age mound of Carnfree itself, believed to be the cairn of the Connacht warrior Fráech, that was used as an inauguration place up to late medieval times.
He had however inspired his comrades who eventually overcame and routed the Munsterman in a glorious victory and to honour their fallen brother they buried him in the mound previously called Cnoc na Dala.
The second Fráech credited with the mound was the man who wooed Medb's daughter and because of his was persuaded to take part in the Táin Bó Cúailnge where he was drowned by Cuchulain during single combat and beheaded.
The foster sons and their wives had eaten nuts from the wood of Caill Aicad that had been enchanted by the men's birth mother and transforming the six of them into red swine.
The pigs still had feelings and human speech, begging Óengas to change them back but he could only advise them to first shake the tree of Tarbga and then eat the salmon of Inver Umaill.
The main record is that of the inauguration of Felim O'Connor in 1310 which tells how he was made king of Connacht,: and he, Fedlimid mac Aeda meic Eoghoin, was proclaimed in a style as royal, as lordly and as public as any of his race from the time of Brian, son of Eocha Muigmedoin till that day... and this was the most splendid kingship-marriage ever celebrated in Connacht down to that day.
The eighth century biography of St. Patrick by Tirechan tells how the Saint came to an area called Selc the location of the 'halls of the sons of Brion'[4] and brought twelve bishops with him writing their names on the stones nearby where they camped.