Complex sentence: Gaspare Galliari (1760-1818; some sources give 1761 for the year of birth or 1823 for the year of death), an Italian painter, was born at Treviglio, and died at Milan.
Split into simpler sentences: Gaspare Galliari (1760-1818; some sources give 1761 for the year of birth or 1823 for the year of death), an Italian painter. He was born at Treviglio, and died at Milan.