Complex sentence: When Bianchi was 10 years old, the whole family moved to Rome, where he lived for 12 years before meeting his wife Theresa Bianchi (nèe: Milano) and moving to South Melbourne, Australia.
Split into simpler sentences: When Bianchi was 10 years old, the whole family moved to Rome. He lived there for 12 years before meeting his wife, Theresa Bianchi (nèe: Milano), and afterwards moved to South Melbourne, Australia.