Life of the Grand Maester Aethelmure
The life of the Grand Maester Aethelmure is a biography about the life of the Grand Maester Aethelmure, a Grand Maester of the Citadel, long since dead. A copy of the biography exists in the library at Winterfell.
A Game of Thrones
As Tyrion Lannister gets up to leave the library at Winterfell he notices Septon Chayle has fallen asleep at a table, his head pillowed by the open book, which, after reading the title, Tyrion sees was a life of the Grand Maester Aethelmure.