Jackie Stallone, the famed celeb astrologer, and Sly's mother, has died ... TMZ has learned.
Jackie recently passed away ... according to sources with direct knowledge. The exact circumstances surrounding her death are still unclear.
Mrs. Stallone was a renaissance woman, to say the least -- well-regarded as an astrologer, dancer and even women's wrestling promoter. Not to mention being the mother of 3 famous children ... Sylvester, singer Frank Stallone and late actress Toni D'Alto, whom she had with Anthony Filiti.
Jackie actually helped kickstart the original 'GLOW' wrestling program back in the '80s .