Roger Bacon · Dante Alighieri Were Roger Bacon and Dante Alighieri alive at the same time? Yes. Roger Bacon and Dante Alighieri were alive at the same time, from c. 1265 to 1292. Roger BaconEnglish polymath, philosopher and friarBorn c. 1220 · died 11 June 1292Dante AlighieriFlorentine poet, writer, and philosopherBorn c. 1265 · died 14 September 1321 Genghis KhanRumiRoger BaconThomas AquinasMarco PoloDante AlighieriIbn BattutaPetrarch Roger Bacon and Dante Alighieri in bold, with some of their best-known contemporaries. Drag across to see the age each reached in any year. Faded ends mark uncertain dates.