Perpauca of Bonisagus
Perpauca of Bonisagus is known in the Normandy Tribunal for having started a tradition of donating books to the tribunal as whole about a century and a half before the official start date. Said books are available as prizes as the Hermetic Tourney of the tribunal.
Perpauca's motives are discussed on page 23 of The Lion and the Lily. Page 26 lists books available as prizes at the Hermetic Tourney, three of which were writte by Parpauca.
No other mention is made of her. It is likely that she has died or passed into Final Twilight, especially if she was already a famed maga by the time she started the tradition of donating books. But the time of this event does not rule out the possibility that she is still alive (though very near Final Twilight or death).