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Prunella Scales -- the beloved British actress best known for her role on the '70s sitcom "Fawlty Towers" -- has died at the age of 93.

The legend’s sons, Samuel and Joseph , confirmed her passing to the UK’s PA Media, saying she died peacefully at home in London on Monday. Her official cause of death hasn't been confirmed.

Samuel also shared a message on X, noting her 2013 vascular dementia diagnosis led to her retirement after a 70-year acting career -- but even in her final days, she remained at home ... and was watching "Fawlty Towers" the day before she died.

He thanked everyone who gave Prunella such wonderful care in her final years ... adding her last days were comfortable, content, and surrounded by love.

Prunella's on-screen husband, Jo

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