 A major narrative within the text is the so-called "Osraige Chronicle" (as proposed by Radner) which greatly focuses on the exploits of the ninth century king of Osraige, Cerball mac Dúnlainge, who was the paternal ancestor of the medieval Mac Giolla Phádraig family.The "Fragmentary Annals" were copied in 1643 for the Rev.John Lynch by Dubhaltach Mac Fhirbhisigh from a lost 15th-century vellum manuscript, which belonged to Giolla na Naomh Mac Aodhagáin (Nehemias MacEgan).