The Prince and Princess of Wales will be making a rare joint appearance with King Charles and Queen Camilla in Scotland today at a ceremony full of pomp and pageantry.
The couple will be among the guests at a service of thanksgiving and dedication at St Giles' Cathedral in Edinburgh to mark the Coronation of the King and Queen.
It's set to be a special event and will see Charles presented with the Honours of Scotland – the country's crown jewels - after a special procession from the Palace of Holyroodhouse.
Looking at the order of the service for the ceremony, some might be confused as to why the Prince and Princess of Wales don't seem to feature in it.
But that's because William and Kate have more than one royal title with the pair inheriting a raft of new ones on the accession of King Charles last year - with many of them little known.
And while they are in Scotland, they use their new Scottish titles - the Duke and Duchess of Rothesay.
The title Duke of Rothesay is always reserved for the heir to the throne along with the other Scottish styles - Earl of Carrick, Baron of Renfrew, Lord of the Isles and Prince and Great Steward of Scotland.
This means the heir's wife Kate is also known as Countess of Carrick, Baroness of Renfrew and Lady of the Isles.
However, William and Kate will mainly use Duke and Duchess of Rothesay - as this title is higher in rank.
Today's ceremony in Edinburgh is part of the annual Royal Week in Scotland and will kick off with a people's procession where around 100 community groups will collect the honours from Edinburgh Castle.
The procession will be escorted to the cathedral by the Royal Regiment of Scotland and its Shetland pony mascot Corporal Cruachan IV, supported by cadet musicians from the combined cadet force pipes and drums.
Meanwhile, a royal procession will travel from the Palace of Holyroodhouse to the cathedral, with the public lining the Royal Mile to view both processions.
A 21-gun salute will fire from Edinburgh Castle at the end of the St Giles’ service before the royal procession travels back to the palace.
The Stone of Destiny will be in the cathedral during the service, and there will also be a fly-past by the Red Arrows following the event.
The people’s procession will include representatives from a wide range of organisations in Scotland, including the Scottish Youth Parliament, Guide Dogs, the Scottish Tartans Authority, the College of Master Kilt Makers, Scouts and Girl Guides.
