The King is expected to pay tribute to the late Queen during his first State Opening of Parliament as monarch.
King Charles stood in last year for Queen Elizabeth after the event was cancelled in 2020 and scaled back in 2023 due to the pandemic.
On Tuesday, the King is expected to travel to Parliament in the Irish State Coach escorted by members of the Household Cavalry Mounted Regiment.
The House of Lords will be packed with more than 600 people for the first King’s Speech in over 70 years.
King Charles will be reading a speech written by Rishi Sunak’s Government to MPs and Peers, outlining government policy and proposed legislation.
During Queen Elizabeth’s first State Opening of Parliament speech in 1952, she paid tribute to her father, King George, for his “selfless devotion to his duties” saying that it would be her “constant endeavour to follow” his example.
When Parliament was prorogued last month, the royal address also paid tribute to the late Queen.
In it, the King said: “My thoughts turn first to my beloved mother, the late Queen. I wish to thank you for the sympathy and support that has been extended to my family and myself from across both Houses of Parliament, the nation and beyond.
“My mother set an example of selfless dedication and devotion to the United Kingdom and wider Commonwealth during her long reign, an example to which I rededicated my own life of public service at my accession a little over a year ago. I remain deeply grateful to the expressions of loyalty which were offered at that time.”
The King is expected to wear the Imperial State Crown which was last worn by Queen Elizabeth at the 2016 opening of parliament.
In the years following, it was carried on a cushion and placed on a table nearby due to its weight.
Made for King George VI’s 1937 Coronation, the crown weighing 2.23kg is made of gold and contains almost 2,868 diamonds, 17 sapphires, 11 emeralds, 269 pearls and four rubies.
Standout gems include the Black Prince’s Ruby, the Stuart Sapphire, the Cullinan II Diamond and St Edward’s Sapphire.
