Short answers, pulled from the story.
Dante Alighieri was born in Florence around the 11th of May 1265, a date deduced from the astronomical clues hidden within his own masterpiece. He claimed to be born under the sign of Gemini, a detail that aligns with the sun's position in the Julian calendar during that specific window of time.
Beatrice Portinari was the daughter of Folco Portinari whom Dante Alighieri met at the age of nine and claimed to have fallen in love with at first sight. Her death in 1290 transformed her from a woman into a symbol of salvation who guided him through the heavens in his literary works.
Dante Alighieri was condemned to perpetual exile in 1301 after the Black Guelphs took power in Florence and he refused to pay a fine for corruption. If he had returned to Florence without paying the fine, he would have been burned at the stake.
Dante Alighieri died on the 14th of September 1321 in Ravenna of quartan malaria contracted while returning from a diplomatic mission to the Republic of Venice. He was buried in Ravenna at the Church of San Pier Maggiore, later called the Basilica di San Francesco.
Dante Alighieri wrote the Divine Comedy in the vernacular Tuscan dialect, breaking with the dominance of Latin to help establish the modern-day standardized Italian language. He is considered the father of the Italian language and the Supreme Poet who influenced Western writers such as Geoffrey Chaucer and John Milton.