Jackie Stallone, the mother of actor Sylvester Stallone and one of Celebrity Big Brother's most memorable stars, has died aged 98.

Tributes have been paid to "a remarkable woman" by one of her other sons, Frank, who confirmed the news in a statement.

Stallone died on Monday "in her sleep as she had wished", he wrote on social media.

"It was hard not to like her, she was a very eccentric and flamboyant person," Frank wrote.

View this post on Instagram

This morning my brothers and I lost our mother Jackie Stallone . She was the mother to four children, Tommy, Sylvester, Frankie and my late sister Toni Ann. She was a remarkable woman working out everyday full of spunk and fearless . She died in her sleep as she had wished. It was hard not to like her, she was very eccentric and flamboyant person. She was born on November 29 th 1921 in Washington DC ,she lived through prohibition , the depression and World War II . I would talk to her for hours about the 20's 30's and 40's. It was a history lesson. Her mind was as sharp as a razor till the day she died. She never wore a mask a true revolutionary gal . I guess I'm drowning my emotions in tears and to much vino. But when you've known someone for 70 yrs it tough and sad. She had seven grandchildren and 3 great grandchildren . My brother Sylvester took care of her like a Queen for all of her life. I will never be able to call my mom again or have her yell at me why I never got married . But we all loved her and her sprit to survive and prevail . I'll miss you always mommy. @officialslystallone

A post shared by Frank Stallone (@frank.stallone) on Sep 21, 2020 at 9:22pm PDT

"Her mind was as sharp as a razor till the day she died."

He said his brother Sylvester had taken "care of her like a Queen for all of her life", and added: "I will never be able to call my mom again or have her yell at me why I never got married.

"But we all loved her and her spirit to survive and prevail. I'll miss you always mommy."

Frank said he is "drowning my emotions in tears and too much vino" following his mother's death.

Stallone was married three times and had three sons and a daughter, Toni D'Alto, who died in 2012.

She had a very memorable, albeit brief, stint in the Celebrity Big Brother house in the UK in 2005, alongside contestants including the late John McCririck, model Caprice, Happy Mondays star Bez, and Germaine Greer.

A truly iconic moment. myeah Brackie. RIP #jackiestallone pic.twitter.com/pS6Eo4YhMZ

— Holly Anderson (@HollyAndersonXx) September 22, 2020

A surprise contestant who went into the famous house a few days after the series had kicked off, Stallone entered much to the shock of co-housemate and former daughter-in-law Brigitte Nielsen, with whom she had a frosty relationship.

"Oh my God! Jackie!" a stunned Nielsen exclaimed when she first saw her.

Stallone's response - "Yeah... Jackie" - as she wore a fur coat and sunglasses, became a famous line from the show.

Rest In Peace Jackie Stallone. ❤️
This is me & Scully with her at the Big Brother wrap party, when Bez won.
She was hilarious and had me running round after her all night...and I loved it ❤️ #jackiestallone pic.twitter.com/ymalRLEmII

— Rowetta🎙 (@Rowetta) September 22, 2020

Despite being evicted from the house after just four days following clashes with racing pundit McCririck, she became one of the show's most loved characters.

Fans of the series have been paying tribute to the woman they say made one of the greatest entrances in its history.

Jamie East, who presented spin-off show Big Brother's Bit On The Side, wrote on Twitter: "Ah man, RIP Jackie Stallone - responsible for one of the greatest ever moments on television."

She had seven grandchildren and three great-grandchildren, Frank said.