Complex sentence: Curiel was born in East Chicago, Indiana, the youngest of four children whose parents, Salvador and Francisca, had emigrated from Mascota, which is a small Mexican town near Puerto Vallarta in the state of Jalisco.
Split into simpler sentences: Curiel was born in East Chicago, Indiana, the youngest of four children. Their parents, Salvador and Francisca, had emigrated from Mascota, which is a small Mexican town near Puerto Vallarta in the state of Jalisco.