Complex sentence: Rhone travelled to Hamburg with Cynthia Lennon, where McCartney bought Rhone a gold ring, and they were due to be married until Rhone lost the baby she was expecting.
Split into simpler sentences: Rhone travelled to Hamburg with Cynthia Lennon, where McCartney bought Rhone a gold ring. They were due to be married until Rhone lost the baby she was expecting.