Complex sentence: Efrem Zimbalist Jr. was born in New York, New York, the son of Jewish parents-the famed Russian-born violinist Efrem Zimbalist, Sr. and Romanian-born operatic soprano Alma Gluck.
Split into simpler sentences: Efrem Zimbalist Jr. was born in New York, New York, the son of Jewish parents. His father was the famed Russian-born violinist Efrem Zimbalist, Sr. and Romanian-born operatic soprano Alma Gluck.