Complex sentence: According to the most widespread version Nino returned to Rome where he established a newsstand and bar, 13 and died in October 1943, at age 54, being buried in the Roman cemetery of Campo Verano.
Split into simpler sentences: According to the most widespread version Nino returned to Rome where he established a newsstand and bar. Nino died in October 1943 at age 54, and was buried in the Roman cemetery of Campo Verano.