 The reports of Aldfrith 's death in the Irish annals call him Aldfrith son of Oswiu , but some of these are glossed by later scribes with the name Flann Fína mac Ossu . A collection of wisdom literature attributed to Flann Fína , the <unk> <unk> <unk> <unk> Ossu , has survived , though the text is not contemporary with Aldfrith as it is in Middle Irish , a form of Irish not in use until the 10th century . 
