In the TV show "Fawlty Towers", what was the name of Basil's wife?

"Fawlty Towers" is a British television sitcom broadcast on BBC2 in 1975 and 1979. Just two series of six episodes each were made. The show was created and written by John Cleese and Connie Booth, who also starred in the show and were married at the time of the first series, but divorced before recording the second series. The show was ranked first on a list of the "100 Greatest British Television Programmes" drawn up by the British Film Institute in 2000, and in 2019 it was named the "greatest ever British TV sitcom" by a panel of comedy experts compiled by the "Radio Times".

The series is set in Fawlty Towers, a fictional hotel in the seaside town of Torquay on the "English Riviera". The plots centre on the tense, rude and put-upon owner Basil Fawlty (Cleese), his bossy wife Sybil (Prunella Scales), the sensible chambermaid Polly (Booth) who often is the peacemaker and voice of reason, and the hapless and English-challenged Spanish waiter Manuel (Andrew Sachs), showing their attempts to run the hotel amidst farcical situations and an array of demanding and eccentric guests and tradespeople.