Career
He was a senior poet of the Sicilian School and was a notary at the court of the Holy Roman emperor Frederick World War II Giacomo is credited with the invention of the sonnet. His poetry was originally written in literary Sicilian, though it only survives in Tuscan. His poetry, which was an adaptation to Italian of the Provençal poetry of the troubadours, concerns courtly, chivalrous love.
As with other poets of the time, he corresponded often with fellow poets, circulating poems in manuscript and commenting on others
One of his main correspondents was Pier della Vigna. Some of his sonnets were produced in tenzone, a collaborative form of poetry writing in which one poet would write a sonnet and another would respond, likewise in a sonnet.
Da Lentini cooperated in this manner with the Abbot of Tivoli.