About the time of Leto's death, Iohannes Policarpus Severitanus composed an extensive commentary on the Donat which claimed Leto and others of his circle as inspiration. The book (Severitanus 1517 was apparently the first edition) was expressly intended as a teacher's manual. See Elie 1950, 191-192.
I. Severitanus. s.n., S.l., (1514)6 c. ; 4°
Segnatura: *6
Esemplare: Nota ms. a c. *6v. Non ci sono riscontri per affermare se si tratta di un mutilo o meno
Impronta: s-ac r.o: m:au -pee (C) 1514 (Q)
PSN: S.l. : s.n., 1514
Localizzazione: Biblioteca comunale degli Intronati. Siena.