“It was hard not to like her, she was a very eccentric and flamboyant person,” he added in an Instagram post.
“Her mind was razor sharp until the day she died.”
Born Jacqueline Frances Labofish on 29 November 1921, Stallone ran away from her home in Washington DC as a 15-year-old to join the circus.
She worked as a trapeze artist for two years before taking a job as a chorus girl on Broadway.
Stallone married her first husband Frank Stallone Sr, a hairdresser and occasional actor, in 1945. They remained together for 12 years and had two sons: Actor Sylvester and musician Frank.