Complex sentence: She is the daughter of Richard Hilton, a hotel heir of the Hilton family who works as a businessman in real estate and Kathy Hilton (née Avanzino), is a former actress and half sister of Kim and Kyle Richards.
Split into simpler sentences: She is the daughter of Richard Hilton, a hotel heir of the Hilton family who works as a businessman in real estate. Her mother, Kathy Hilton (née Avanzino), is a former actress and half sister of Kim and Kyle Richards.