'...Martyrologium siue Datarium secundum ritum Sancte Romane Ecclesie', with prologues relating to St. Jerome, Usuardus, etc. Elaborate calendarial tables (partly in Italian) and a full calendar precede: the honour paid to St. Servulus (May 24 and Nov. 23) shows that the volume was written at Trieste, and the year is given on foll. 1, 4.