More than 100 heads of state are reportedly expected to attend the Queen's funeral on Monday.
Some of the famous names include US President Joe Biden, former PM Sir Tony Blair and Japan's Emperor Naruhito.
Controversially, the right-wing leaders of Brazil and Turkey have also accepted invitations to the service.
Donald Trump and other former US Presidents are not expected to be at the Queen's funeral.
And Russia's leader Vladimir Putin has been banned from the event.
However members of the royal family, including Prince Harry and Meghan Markle, will be present.
It is not yet clear whether any celebrities will be in Westminster Abbey for the ceremony, although with 2,000 guests expected it is likely many will attend.
Follow along with all the latest royal news on our live blog.
Confirmed royals
Many members of the extended and close royal family are expected to attend the funeral, including the late Queen's four children and their respective partners.
These include King Charles and Queen Consort Camilla, Princess Anne and her husband Sir Timothy Laurence, and Prince Edward and the Countess of Wessex.
Prince Andrew and his ex-wife Sarah Ferguson are also due to be there.
The Queen's eight grandchildren and respective partners are expected, including the Prince and Princess of Wales, Prince Harry and the Duchess of Sussex, Princess Beatrice and Edoardo Mapelli Mozzi, Princess Eugenie and Jack Brooksbank, Zara and Mike Tindall and others.
It's not yet known if Prince William's three young children Prince George, Princess Charlotte and Prince Louis will be in attendance.
The Queen's cousins such as the Duke of Kent, Prince and Princess Michael of Kent and are also expected to attend.
Monarchs from Spain, Belgium, Monaco, the Netherlands, Sweden, Norway, Luxembourg and Greece will also be present.
Confirmed political leaders
US President Joe Biden has confirmed he and his wife will be attending.
Brazil's right-wing President Jair Bolsonaro has also accepted an invitation to the funeral.
Turkey's controversial leader Recep Tayyip Erdogan, who has cracked down on opposition in his country, is also due to attend the service.
The heads of the following countries will also make an appearance; New Zealand, Australia, Canada, South Korea, Germany, Italy, Israel, South Africa, Austria, Lithuania, Sri Lanka, Poland, Nambia, Papua New Guinea.
European Commission President Ursula von der Leyen will also be at the ceremony.
Political leaders across the UK are also expected to go to the funeral.
These include Prime Minister Liz Truss, Scotland's first minister Nicola Sturgeon and Wales' first minister Mark Drakeford.
Who could be going?
Crown Prince Mohammed bin Salman Al Saud, also known as MBS, could attend the funeral in his father's place.
MBS, the de-facto ruler of Saudi Arabia, allegedly ordered the murder of Washington Post journalist Jamal Khashoggi, although he denies responsibility.
He has also been accused of orchestrating purges against his opponents.
India's Prime Minister Narendra Modi and China's President Xi Jinping have yet to confirm if they will be at the funeral.
Dubai's ruler Sheikh Mohammed bin Rashid Al Maktoum has also yet to confirm his attendance.
It is not yet known if any of the Queen's 12 great-grandchildren, including Princes George and Louis of Wales and Princess Charlotte of Wales, will be at the service.
Who isn't going?
Donald Trump has not been invited to the Queen's funeral.
Barack Obama and his wife Michelle have also missed out on an invite along with all other former US presidents, according to reports.
Vladimir Putin will be absent after representatives from Russia, Belarus and Myanmar were banned from the service.
It is thought Ukraine's President Volodymyr Zelensky will also not attend the ceremony as he is busy organising his country's defence.
Iran's Supreme Leader Ali Khamenei and the country's President Ebrahim Raisi have not been invited.
However, Iran's ambassador to the UK is being asked to attend.
