During Queen Elizabeth II 's reign, she saw the number of countries leaving the Commonwealth whittle down from 32 to 14.
Barbados, which has been known as "Little England", was the most recent country to have severed ties with the monarchy.
Now in the wake of Her Majesty's death, other countries are taking steps to become a republic.
Yesterday, the Prime Minister of the Bahamas announced it would have a referendum on whether to remove the King as head of state and become a republic.
Philip Davis said that it would be down to the public in the Bahamas to decide on its future.
Antigua and Barbuda announced on Saturday plans for a referendum on becoming a republic with an elected head of state.
Belize, one of 14 other countries, excluding the UK, that now has King Charles as head of state, has already confirmed a constitutional review.
The countries are the first to indicate a move away from the British king.
In addition to the UK, King Charles III also represents Antigua and Barbuda, Australia, The Bahamas, Belize, Canada, Grenada, Jamaica, New Zealand, Papua New Guinea, Saint Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Solomon Islands, and Tuvalu.
After 70 years of continuous rule by Elizabeth II, Charles will be tasked with presiding over a diverse selection of countries, all at different stages of their post-colonial history.
You can leave your tributes to Queen Elizabeth II here
The British monarchy's role within the country's lost history of empire and its part in the slave trade has been leading to uncomfortable questions about the family's current role in other nations' constitutions.
In 2021 Barbados became a republic when it removed Queen Elizabeth II as its head of state.
Jamaica may soon have to decide whether to make a similar move, as a referendum may be needed to appoint Charles as the new head of state, the Guardian reports.
Last year, Jamaica's government said it would be asking the UK for compensation for the 600,000 African people who were taken to the country as part of the slave trade.
Over the weekend Gaston Browne, prime minister of Antigua and Barbuda, announced plans to hold a referendum within the next three years.
"This is a matter that has to be taken to a referendum for the people to decide," Browne told ITV News.
"It does not represent any form of disrespect to the monarch. This is not an act of hostility or any difference between Antigua and Barbuda and the monarchy.
"It is a final step to complete the circle of independence to become a truly sovereign nation."
Over the weekend, Australia and New Zealand proclaimed Charles III as head of state at ceremonies in their respective capitals.
The republican movements in each country, as well as many of the others where Charles will reign, are likely to take the Queen's death as an impetuous to break away from the monarchy.
Such movements may have had more success following the Queen's death, given the admiration the monarch inspired in any part of the world.
In 2011, as the Queen made what would be her last visit to Australia, actor Hugh Jackman said: “Even the republicans, the ones in Australia who want to see Australia move on, still have great respect and love for the Queen. I’ve never heard anyone say different.”
You can now buy Friday's historic Daily Mirror commemorating the death of the Queen here: mirror.co.uk/commemorative