Complex sentence: Bonvicini was born either in Parma or Modena, in Emilia Romagna region of Northern Italy: the exact site is unknown as his mother registered him in both places to obtain more war food supplies.
Split into simpler sentences: Bonvicini was born either in Parma or Modena, in the Emilia Romagna region of Northern Italy. The correct site is unknown, as his mother registered him in both places to obtain more war food supplies.