The influential Italian poet, Francis Petrarch (1304 – 1374, born Francesco Petrarca) wrote sonnets that defined the form and content of much Elizabethen lyrical poetry, including Shakespeare's celebrated sonnets. In addition, one of Petrarch's letters to Boccaccio provided the inspiration for Chaucer's "The Clerk's Tale". Petrarch wrote in both Latin and Italian: two of his most famous works are the "Trionfi" and the "Canzoniere".
The Petrarch Collection includes 32 works on microfiche and a copy of the Cornell University Libraries' Petrarch: Catalogue of the Petrarch Collection. (indexed by author, translator and editor).