So-called first Irish Life of Brénainn of Clúain Fertae (Clonfert, Co. Galway), also known as the Lismore Life. While the first and second Lives represent much the same version during the first part of the narration, they diverge at the point where the second Life becomes conflated with the Navigatio sancti Brendani. The first Life, moreover, concludes with a fragment of Fis Adomnáin.