While US President Donald Trump has accepted an invitation to meet Queen Elizabeth, he's not so keen on meeting her son.
Prince Charles is a strong believer in climate change and was a keynote speaker at the Paris climate talks in 2015. The talks resulted in a worldwide agreement Mr Trump wants to scrap.
No date has been set for the visit, but members of the President's inner circles have reportedly warned British officials if Charles tries to lecture Mr Trump on environmental issues, the billionaire businessman will "erupt".
Mr Trump has previously called climate change a "hoax created by and for the Chinese in order to make US manufacturing non-competitive".
Charles has also used his position to promote better relations between different faiths - in contrast to Mr Trump's crackdown on visitors from Muslim-majority countries.
Mr Trump also plans to gut US environmental policy, and has already ordered the controversial Keystone and Dakota Access pipelines be finished.
Mr Trump has reportedly asked to meet the younger princes, Harry and William, instead.
But it could be difficult to keep the two very different men apart. According to the Guardian, a typical visit by a head of state would take in lunches, state dinners and a visit by Charles to where Mr Trump was staying.
Meanwhile, thousands of people have signed a petition on a British government website calling for Mr Trump to be barred from visiting Britain.
Titled 'Prevent Donald Trump from making a State Visit to the United Kingdom', the petition already has more than 600,000 signatures.
Petitions with more than 100,000 signatures must be considered for debate in Parliament.
"Donald Trump's well documented misogyny and vulgarity disqualifies him from being received by Her Majesty the Queen or the Prince of Wales," the petition reads.
British Prime Minister Theresa May met Mr Trump in Washington last week.
Her rival, Labour leader Jeremy Corbyn, has called for Mr Trump to be barred entry until he rescinds his executive order blocking refugees and migrants from Muslim countries from entering the US, reports the Independent.