Prunella Scales, CBE is an English actress best known for her role as Basil Fawlty's wife Sybil in the BBC comedy Fawlty Towers and her BAFTA award-nominated role as Queen Elizabeth II in A Question of Attribution (Screen One, BBC 1991) by Alan Bennett. In March 2014 her husband told The Guardian that Scales was living with Alzheimer's disease. She and Timothy West discussed practical measures in a radio programme about age and dementia on BBC Radio 4 in December, 2014. In August, 2015, it was reported that Scales' condition had worsened considerably to the point that she can barely remember any of she and West's fifty-three years of marriage.
(https://en.wikipedia.org/wiki/Prunella_Scales)