Complex sentence: According to some sources, Heraclianus arrived in Italy and moved towards Rome, but he was scared by the arrive of "Comes" Marinus, left his army and fled to Carthage, where he was put to death on March 7.
Split into simpler sentences: According to some sources, Heraclianus arrived in Italy and moved towards Rome, but he was frightened by the arrival of "Comes" Marinus. He left his army and fled to Carthage, where he was put to death on March 7.