Complex sentence: She gave birth to Damien in an ordinary hospital in Italy, on June 6th, 1976 (2006 in the remake), and died in childbirth at the same moment that the Thorn's real son was murdered.
Split into simpler sentences: She gave birth to Damien in an ordinary hospital in Italy, on June 6th, 1976 (2006 in the remake). She died in childbirth at the same moment that the Thorn's real son was murdered.