Complex sentence: Alberto Burri was born on 12 March 1915 in Città di Castello, Umbria to a Tuscan wine merchant (Pietro Burri) and an Umbrian elementary school teacher (Carolina Torregiani).
Split into simpler sentences: Alberto Burri was born on the 12th of March, 1915 in Città di Castello, Umbria. He was the son of a Tuscan wine merchant (Pietro Burri) and an Umbrian elementary school teacher (Carolina Torregiani).