King Charles has stepped out in Windsor to welcome French President Emmanuel Macron to the UK for a State Visit. Along with Queen Camilla and First Lady Brigitte Macron, the King marked the beginning of the three-day trip which will see him reflect on 1,000 years of "shared history and culture" between the UK and France.
As he was pictured welcoming the French President, the King's eye was noticeably bloodshot. A Buckingham Palace spokesperson explained that there is no cause for alarm and that it was caused by a burst blood vessel in his right eye, which appeared overnight.
They added that it is unrelated to the monarch's ongoing cancer treatment.
The pomp and pageantry will include a formal welcome at the Royal Dais on Datchet Road, Windsor, and a royal salute will be fired in Home Park and the Tower of London.
The King, the Queen, the Waleses and Mr and Mrs Macron will then take a carriage procession through the Berkshire town and along part of the Long Walk which leads to the castle.
A ceremonial welcome will be staged in the castle's quadrangle with Camilla, William, Kate and Mrs Macron watching as the King and Mr Macron inspect the Guard of Honour.
Lunch will be hosted in the State Dining Room, after which the president and his wife, the King and Queen and members of the royal family will view a special exhibition of items relating to France from the Royal Collection in the Green Drawing Room.
Mr and Mrs Macron will also travel to London on Tuesday afternoon to see the Grave of the Unknown Warrior at Westminster Abbey, visit the Palace of Westminster where the French leader will address parliamentarians in the Royal Gallery, and meet opposition leaders at Lancaster House.
This evening, the King will host a glittering state banquet at Windsor Castle's St George's Hall, where both Charles and Macron will deliver speeches to invited guests.
Kensington Palace has yet to confirm whether or not the princess will attend the banquet.
Wednesday will see the president and Mrs Macron join Prime Minister Sir Keir Starmer and Lady Starmer for lunch at Downing Street, ahead of a UK-France summit at Number 10 on Thursday.