I remember her from the Carry On Films, she was also on Eastenders. Poor soul had Alzheimer's. TCM showed the Carry On films a few years ago. Originally I watched out them of mild curiosity, having read about them (especially Carry On Cleo which used the costumes and sets from Fox's abandoned attempt to make Cleopatra in the cold, damp UK). I really enjoyed the CO films (most of them, anyway) and Barbara was quite good.
https://www.bbc.com/news/uk-55269649
https://www.dailymail.co.uk/tvshowbi...es-age-83.html