Complex sentence: Hubbard was married to Jackie Smith ("née" Alice Jacqueline Hartman), first publicity director of Mercury Records, and the mother of Conrad Robert Falk, who would later become actor Robert Conrad.
Split into simpler sentences: Hubbard was married to Jackie Smith ("née" Alice Jacqueline Hartman), first publicity director of Mercury Records. Smith was the mother of Conrad Robert Falk, who would later, as an actor, adopt the stage name Robert Conrad.