The Diarii, faithful chronicle of the years between 1496 and 1533 written by the Venetian patrician Marin Sanudo, are considered an indispensable reference work for research on the late Renaissance. This present study provides a detailed linguistic and philological analysis of the Diarii, based on the edition Fulin et al. (1879–1903) as well as on excerpts of autographic manuscripts (Marc.It. VII, 228–286).