Timothy's children, Juliet, Samueland Joseph West shared a statement confirming the sad news: "After a long and extraordinary life on and off the stage, our darling father Timothy West died peacefully in his sleep yesterday evening. He was 90 years old.
"Tim was with friends and family at the end. He leaves his wife Prunella Scales, to whom he was married for 61 years, a sister, a daughter, two sons, seven grandchildren and four great-grandchildren. All of us will miss him terribly.
"We would like to thank the incredible NHS staff at St George's Hospital, Tooting and at Avery Wandsworth for their loving care during his last days."
Timothy West and Prunella Scales attending the gala opening of the new London Academy of Music and Dramatic Art centre
Prunella and Timothy's romance more than stood the test of time. The thespians got married in 1963 and resided in London with their two sons, Samuel – star of All Creatures Great and Small – and Joseph. Timothy was also a father to Juliet from a previous marriage.
Prior to Timothy's passing, he and Prunella didn't step away from their true passion for the arts. Both continued to work and seemingly shunned retirement.
THE WEST FAMILY
Prunella, 92, has myriad credits in television and theatre work including An Evening with Queen Victoria, Emma, various Shakespeare productions and, perhaps most notably, Fawlty Towers.
Timothy, meanwhile, was also known for his extensive experience as a theatre actor. He racked up TV credits in Coronation Street, EastEnders and Gentleman Jack. Together, they presented the adored show, Great Canal Journeys. On the subject of shunning retirement, Prunella told The Times in September: "Oh, well, the answer to that is because we're still invited to [work]. If we're out of work, we get very depressed."
One thing that lasted as long as their careers was their happy marriage, but they didn't take it for granted. "I think I'm a very lucky lady. I'm married to a very interesting person and I love him very much and I'm interested in him. So it's not a problem," she told The Times in the same interview.
"If I had an unhappy marriage and was married to somebody I didn't get on with, I'd be a different person."
Click through the gallery to see some fantastic photos from the archive celebrating their enduring love story...
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Prunella Scales and Timothy West's six-decade union
Here, Prunella is seen as Kate Starling opposite Richard Briers as her on-screen husband George in the BBC sitcom, Marriage Lines, which would be her breakthrough television role.
Though it's not known where or when exactly Prunella met Timothy, it's likely they met in the industry around the time she was appearing in the show.
Timothy had already begun working as a theatre actor by the time Prunella landed her part on the BBC comedy.
Having met at some point in the early 1960s, Timothy and Prunella made it official in 1963 and wed at Chelsea Registry Office.
We love how unconventional and low-key the affair looked. The couple are dressed smartly for the affair, though notably, Prunella opted away from wearing a traditional bridal white gown, instead wearing a beautifully tailored houndstooth coat with black gloves, black bag and black heels.
The actress polished off the seriously chic look with a fur hat and her hair perfectly coiffed. Timothy, meanwhile, opted for a simple smart suit with a plain black tie and white shirt.
By the time the 1970s came around, both Prunella and Timothy had made impressive trajectories in the acting world.
Prunella became a household name when she landed a role in Fawlty Towers playing Sybil Fawlty, the often fed-up wife of Basil Fawlty, played by John Cleese.
The show is considered an institution when it comes to British sitcoms.
Prunella and Timothy were joined by Samuel and his partner, Laura Wade, at the after-party for the production of The Lover/The Collection.
Samuel and his partner are both in the industry as actors and playwrights so we bet the foursome enjoyed plenty of evenings out watching plays in London's West End.
In 2014, Prunella was diagnosed with vascular dementia but generally keeps her health private. However, the actress did speak about her memory in an interview with The Times last month.
"In response to being asked about her memory, the Fawlty Towers actress retorts: "Well, as one gets older, one's memory and living from minute to minute changes, doesn't it? You get less efficient.
"My memory is less good. I mean, I forget to do things and, that's age, the same as everybody else. Oh, don't go on asking me about things like that."
Meanwhile, Samuel appeared on Lorraine last month and was asked how his mother was doing. "They're fine, they're fine. My mother went on a cruise the other day, I'm not sure if she knew where she was but she enjoyed getting there."
The 58-year-old added that his mother's attitude to life amid her ongoing health is about enjoying life as a journey.
Samuel explained: "She said: 'I don't always know where I'm going but I enjoy getting there' and I thought if that is her philosophy, that might have to be mine as well."