Gillian Rolton, an equestrian from Australia who broke multiple bones in falls from her horse during the 1996 Summer Olympics in Atlanta but remounted each time to finish the competition and help her team win a gold medal, died on Nov. 18 at a hospice in North Adelaide. She was 61. The Australian Olympic Committee said the cause was endometrial cancer, a type of cancer that begins in the uterus. Rolton had won an Olympic gold medal four years earlier at the Summer Games in Barcelona aboard Peppermint Grove (better known as Fred or Freddy) — the first Australian horsewoman to do so.