After days of mounting pressure amid the debate about slavery and reparations, the King finally delivered his long-awaited speech to Commonwealth leaders, including a powerful statement that the wrongs of the past fill his heart with "horror" and his "soul with the most profound personal sorrow".
For several among them, who have called for a formal apology from the UK, he will not have gone far enough, especially after Prime Minister Andy Burnham's comments last week about being open to an apology.
But unlike the Prime Minister, Charles did exactly what he was expected to do. He remains constrained by government policy, whatever the Prime Minister's future intentions may be.
Intriguingly, Mr Burnham later told the King his speech had been "perfect", suggesting that his carefully chosen words were entirely in line with what the Government wanted.
© Ben Stansall-Pool/Getty ImagesBut listening to the speech here in Antigua, what struck me was that Charles was not just revisiting the past, he was also making a case for the Commonwealth's future.
In some ways, the monarch said more than he previously has done on the topic. There was a nod to the historic involvement of the monarchy in the slave trade. Referring to "forebears we can never know", he said: "Our inheritance includes both their achievements and their failures - the good they did as well as the wrongs."
It's something he has previously engaged with, but never publicly addressed. In 2023, Buckingham Palace confirmed that the Royal Household was supporting independent research into the British Monarchy’s role in the transatlantic slave trade during the 17th and 18th centuries, adding that it was an issue the King took "profoundly seriously".
And he didn't just focus on the failures of the past, but also the achievements - including Britain's role in the abolition of slavery.
Yet for all the attention on those lines, his wider speech focused just as much on the present and the future.
"The more I have furthered my own understanding of the issues, through listening, learning and looking, the more committed I have become to finding ways for us to work in modern partnership to address the wrongs of the past with action for the future," he said.
This wasn't an attempt to shut down the discussion, but rather an attempt to show that acknowledging the past and looking to the future need not be mutually exclusive.
© Ben Stansall-Pool/Getty ImagesAnd his message was that the Commonwealth needs to pull together now more than ever if it is to stand a chance of meeting challenges such as the "catastrophic reality" of climate change, global conflict and inequality - all themes that have populated the past eight days on tour.
It was a reminder that Charles sees the Commonwealth as far more than a legacy of Britain's colonial past and that for him, its real value lies in what its 56 member nations can achieve together.
Summing up his delicate balancing act, he said "As any sailor navigating the seas knows, we cannot command the winds, least of all where the winds of yesterday have delivered us - but we can choose how we set our sails."
His words may not have delivered what some had been calling for, but as Head of the Commonwealth, he has to find a way to move the organisation forwards while also acknowledging the past.
The King can't change the course of history, nor can he settle the debate over reparations. But he can help member states to chart a course towards a better future.
