Short answers, pulled from the story.
Petrarch was an Italian scholar and poet born in Arezzo on the 20th of July 1304. He is considered one of the earliest Renaissance humanists, credited with initiating the 14th-century Italian Renaissance through his rediscovery of Cicero's letters and his development of humanist philosophy. His sonnets became a model for lyrical poetry across Europe, and the Petrarchan sonnet form still bears his name.
The Canzoniere, formally titled Rerum vulgarium fragmenta, is a collection of 366 lyric poems, 317 of which are sonnets. It is dedicated to a woman called Laura, whom Petrarch first saw in the church of Sainte-Claire d'Avignon on the 6th of April 1327. The poems explore unrequited love, inner conflict between sensuality and Christian faith, and the poet's grief following Laura's death in 1348.
Petrarch climbed Mont Ventoux on the 26th of April 1336 with his brother Gherardo and two servants, motivated by recreation rather than necessity. At the summit, he opened a copy of Saint Augustine's Confessions and read a passage reproaching humans for marveling at mountains while ignoring their own souls. He immediately closed the book, fell silent, and said nothing until the group descended.
In 1345, Petrarch personally discovered the Epistulae ad Atticum, a collection of Cicero's letters, in the Chapter Library of Verona Cathedral. This collection had not previously been known to exist, and its discovery is often credited with helping to ignite the Renaissance recovery of classical knowledge.
Laura is the woman celebrated in Petrarch's Canzoniere, first seen in Avignon in 1327. She may have been Laura de Noves, wife of Count Hugues de Sade and an ancestor of the Marquis de Sade, though the identification is uncertain. According to Petrarch's Secretum, she refused his advances because she was already married, and their personal contact was minimal.
Petrarch's library of notable manuscripts had been promised to Venice in exchange for the use of Palazzo Molina, where his daughter's family lived from 1362 to 1367. The arrangement was likely cancelled when he moved to Padua, and after his death in 1374 the library was seized by the da Carrara lords of Padua. The books and manuscripts are now widely scattered across Europe.