He rose from the slums of Manchester to bag one of the most sought-after jobs in the world

By the end of his career, Alan Fisher had worked for the Duke and Duchess of Windsor, Charles and Diana, Bing Crosby, Ralph Lauren and Robert Lehman.

He rose from the slums of Manchester to become one of the most sought after butlers in the world. Now, his unpublished memoirs have to come to light, giving a fascinating insight into life with King Edward VIII and his wife Wallis Simpson, which have stayed under wraps - until now.

Fisher served as the Duke and Duchess of Windsor's butler for six years from 1954 almost 20 years after King Edward VIII abdicated the throne to marry Simpson.

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The manuscript, which lifts the lid on high society life, is now expected to fetch between £3,000-£5,000 when they are sold by Rare Books Auctions on June 4.

The sale also includes a never-before-seen photo of Edward in royal robes, as if dressing up as a king, with twice-divorced Wallis at his side.

Alan put pen to paper in 1978 to record memories of his time with the Duke and Duchess of Windsor at their home in Bois de Boulogne, France.

He was joined by his wife, Norma, maid to the Duchess of Windsor, with the servants residing on site in ‘The Cottage’.

Alan revealed how the pair lived on a scale "far surpassing" the Royal Family but he believed Simpson, who he found difficult and ruthless, never loved "weak" Edward.

The king had abdicated the British throne in 1936 to marry her, sparking a constitutional crisis.

Alan also told how on one occasion he nearly resigned telling Simpson to "stick her job" after she scolded him for not closing a window properly.

Alan served the rich and famous as well as royalty - working for Bing Crosby for 17 years, Ralph Lauren and Robert Lehman of Lehman Brothers.

His last formal engagement in the 1980s was butler for Charles and Diana, the Prince and Princess of Wales.

Alan famously said, ‘The perfect butler sees all, hears all and tells nothing’ and he lived by this definition until his death in 2006.

The documents have come to light through family descent. Siblings Georgina Edwards and David Summers said: "Alan and Norma Fisher were our uncle and aunt.

"We inherited the manuscript and memorabilia following their passing. We had all grown up hearing stories regarding their life in service and have been lucky enough to visit many royal palaces and celebrity homes because of this connection.

“We believe Alan was in advanced negotiations with a US television company to make a series out of his memoirs. Included in the papers is an envelope from The Konigsberg Company, part of 20th Century Fox.

"I suspect Alan knew Frank Konigsberg through Bing Crosby.

"Bing encouraged Alan to share his memoirs of his time with the Duke of Windsor for historical purposes. Konigsberg was one of Hollywood's biggest talent management agents.

“We do not wish to keep the manuscript and picture simply stored away in a box at home in Kenilworth (Warwickshire).

"It would be far better for someone to own and appreciate them, and for the story of Alan and Norma's time with the Duke and Duchess of Windsor to be passed on."

Jim Spencer, director of Rare Book Auctions, said: “This is an extraordinary and immensely readable work. Every line is quotable.

"Reading through it, I get a crystal sense of this utterly private little world.

"I can smell the bottles of burning perfume; I can see the ivory and gold swizzle-sticks stirring up the champagne bubbles; I can hear the Duchess's heels on the cold marble.

“It's written with such humour and humanity that it must surely appeal to a publisher.

"It's not quite Jeeves and Wooster, but there's certainly a feeling of the quiet dignity, intelligence and tact that comes from someone who is ostensibly a servile valet.

"As Alan himself says in these memoirs, ‘You didn't care how idiotic you appeared if it saved the day’.”

The sale, which also includes an equestrian portrait given to the butler by his royal employer, will take place at Bishton Hall, Staffs., on June 4.