Netflix's hit TV show The Crown has proved controversial over the years for leaving viewers with a false impression of history after it incorrectly depicted several of the most important moments in Queen Elizabeth II's life.

The misinterpretation caused by the series could even be behind the late monarch's alleged dislike of President Donald Trump.

A source involved in arranging Trump's 2018 visit to Britain with his wife, Melania, told the Daily Mail's Richard Eden that the tycoon made an ill-advised comment about the Queen's sister Princess Margaret, who died in 2002 aged 71. 

The insider said: 'Trump put his foot in it by saying Margaret must have been a difficult sister. The Queen was very annoyed with this remark, which she viewed as ignorant and hurtful. She always defended Margaret to the hilt.'

It's not clear why Trump allegedly made the comment but some have suggested the well-known TV fan may have been inspired by Margaret's depiction in The Crown.

In the two series aired before Trump's visit, Margaret is portrayed as rebellious, volatile and resentful of her elder sister, all the while being tortured over her decision not to marry Group Captain flying ace Peter Townsend.

In the series, the Queen and her government are shown opposing her desire to marry him, which would have required the monarch's permission under the Royal Marriages Act 1772.

In reality however, a plan was made to amend the Act to allow the marriage while removing Margaret and her children from the line of succession.

Although the government - led by Prime Minister Anthony Eden - stated that if she married her love then she would be stripped of her royal privileges as well as her income and perks.

It is unknown when Margaret and Townsend's romance formally began, but they met on his first day as the equerry to King George VI when she was 14 and he was 29.

In 1955, after years of romance, the then 25-year-old Princess eventually made the heartbreaking announcement she had made the decision not to marry him. 

The tragic love story was later depicted in all its drama in The Crown, with Vanessa Kirby playing Margaret and Ben Miles playing Townsend.

The series, which ran for six seasons from 2016 to 2023, repeatedly drew controversy for its false portrayal of history, which was seen as extremely damaging to the royal family due to its popularity. 

If Trump did indeed make the alleged comment, it is believed it would have deeply offended the Queen as she was always extremely close with her only sister.

Although for much of her life, Margaret did her best to live a sometimes alarming distance from the example set by the dutiful firstborn, the pair spoke to each other every day when possible until Margaret passed away.

Due to her fag-smoking and repeated scandals, Margaret has been referred to by some biographers as 'a sort of anti-Queen'. 

While Elizabeth busied herself with endless duties, including red boxes of papers in the evenings, Margaret - four years younger - had emerged as one of the most glamorous figures in post-war Britain.

A patron of the arts, ballet in particular, she was also known for late nights, singing, dancing and a romantic life which brought much heartache.

After the failed romance with Townsend, the Princess's marriage to photographer Tony Armstrong-Jones, another totem of '60s glamour, ended in acrimony and the first royal divorce since Henry VIII. 

However, there have been other theories regarding conflict between Trump and the Queen.

In Craig Brown's book, titled A Voyage Around The Queen, he claimed a few weeks after President Trump's visit, she confided in a lunch guest that she found him 'very rude', particularly disliking the way he couldn't stop looking over her shoulder, as though in search of others more interesting.

She is also said to have mused that he 'must have some sort of arrangement' with his wife after hosting him during one of his two visits.

Trump said the comments were 'totally false'. He told the Mail: 'I heard I was her favourite President. I had a great relationship with the Queen. She liked me and I liked her. She was an amazing woman.'

When assessing the claim, the Mail's royal expert Robert Hardman wrote it was 'intriguing' because on those occasions when she did complain about rudeness, it was usually rudeness to others, not to herself.

He said when the late King Hassan II of Morocco was berating one of her private secretaries, she delivered a stern riposte: 'I'll thank you not to speak about my staff like that.'

Courtiers might be appalled at breaches of protocol in the presence of the monarch – like a failure to bow or curtsey or, indeed, someone looking over the Queen's shoulder – but it seldom bothered her. 

Hardman claims the Queen was perfectly used to people lapsing into the oddest behaviour when introduced to her. Some would even lose the power of speech.

Trump first met the monarch in 2018 when he and his wife Melania were on an official visit to the UK and came to Windsor for tea. 

It is always reported that he committed a great faux pas by walking in front of the Queen while inspecting the guard of honour, though it was nothing of the sort. King Charles lets his guests do the same. 

The Trumps then had tea with the Queen – alone – in the Oak Room in her private wing. If it had not been going well, it would not have overrun by 20 minutes, Hardman writes. 

Aides later said that the two heads of state bonded happily over a shared connection: they both had Scottish mothers and both owned a fair chunk of Scottish soil. 

Their next encounter was when Trump paid a state visit to the UK in 2019, but it would be the Queen's last. 

Hardman wrote he doubted that Trump was looking over her shoulder before the banquet because the host and state visitor would always stand side by side when greeting all the guests and then talk properly one-on-one over dinner. 

There would then be mingling afterwards over coffee and drinks in the Blue and White Drawing Rooms. 

Hardman claimed the whole point of the after-dinner reception is for the state visitor to meet other guests, not to remain attached to the monarch. The Queen would have wanted to circulate too. 

However scintillating Trump's dinner anecdotes about property development and golf, Hardman suspects that she would have been ready to share him with the other 130 guests by the time they had 'gone through'.

Trump has not yet responded to the recent allegation that he made a comment about Margaret to the late Queen.