The Archbishop of Canterbury has praised the Prince of Wales’s belief in the “sacred duty of service” as the royal family gathered to mark the 50th anniversary of his investiture.

The Most Rev Justin Welby paid tribute to Charles’s “prophetic voice on the environment”, his work supporting disadvantaged young people and “concern” for the armed forces in a speech at a Buckingham Palace event hosted by the Queen.

The prince was surrounded by his immediate family at the reception, with his wife the Duchess of Cornwall by his side along with the Duke and Duchess of Sussex and Duke and Duchess of Cambridge – a symbolic gesture of support for the future king.

Leading figures from Wales were also invited, including Falklands veteran Simon Weston, the band Stereophonics, Game Of Thrones star Owen Teale and First Minister of Wales Mark Drakeford.

The Queen and the Prince of Wales, followed by the Duke and Duchess of Cambridge, the Duchess of Cornwall, and the Duke and Duchess of Sussex at a reception at Buckingham Palace
The Queen and Charles, followed by the Duke and Duchess of Cambridge, the Duchess of Cornwall, and the Duke and Duchess of Sussex (Dominic Lipinski/PA)

The gathering of senior royals, Prime Minister Theresa May and representatives from Charles’s Welsh charities celebrated the moment on July 1 1969 when the Queen formally invested her son and heir with the title Prince of Wales at Caernarfon Castle.

The Archbishop said about Charles: “From service to young people and those caught in poverty, a prophetic voice on the environment, proved by time and events, concern for all who serve our country from the armed forces to the police, compassion for the suffering and humour with the brave and rejoicing, the list goes on and on.

“The investiture was unique. Seldom can a coming-of-age have had such a setting; seldom can the weight of expectation have been so great.

“In years since then, we have seen how the honour of being granted that title has been richly repaid – in the Prince of Wales’s love for the country whose name he bears, and in the deep respect he has always shown for the land, for the language, and most of all, of course, for the people.”

The Archbishop went on to say: “This Prince of Wales has guarded the sacred duty of service and kept the fire not only alight, but burning more brightly with the passing years.”

The Duke and Duchess of Sussex attend a reception at Buckingham Palace
Harry and Meghan attended the reception (Dominic Lipinski/PA)

Mr Welby ranked Charles above all his other predecessors in terms of his service to others, saying: “Never in the history of the role can there have been such dedicated service, such honourable fulfilling of the promise at the investiture, ‘I, Charles, Prince of Wales, do become your liege man of life and limb and of earthly worship, and faith and truth I bear unto you, to live and die against all manner of folks’.”

Charles’s brothers the Duke of York and Earl of Wessex were not at the event, with Andrew attending private commitments and Edward at an official engagement, but the Princess Royal was among the guests.

Stereophonics frontman Kelly Jones, who was joined by bandmates Richard Jones, Jamie Morrison and Adam Zindani, described how money from Charles’s flagship charity the Prince’s Trust helped set the band on the path to stardom.

After meeting the prince, he said: “We applied for a couple of grants from the Prince’s Trust because we needed some money for some speakers and Prince Charles came down to Pontypridd and we met him and we had some funding from them and that got us on the way.

The Duchess of Cambridge attends a reception at Buckingham Palace
Kate was also at the Buckingham Palace event (Dominic Lipinski/PA)

“Unfortunately the speakers got stolen by a bunch of builders a few months later, we had to get some more money, but yes, it was a very helpful start.”

Jones said about Charles: “I think he’s become almost part of the Welsh culture, he’s always been there.

“I’m just enjoying being here, nice to be asked, it’s been quite a surreal circle really to get a few quid for some speakers and then 22 years later they’ve let us in here.”

The Archbishop of Canterbury Justin Welby makes a speech during a reception at Buckingham Palace
The Archbishop of Canterbury making his speech (Dominic Lipinski/PA)

The band also chatted to William, and the group’s rhythm guitarist Zindani said the duke told them about using the police lights to help him get Prince George to school on time.

He said: “He did mention pressing the blue light on the school run to speed things up a bit. Sometimes he presses the blue light like Batman and he’s there.”

Kensington Palace later said this was a joke by the duke, and it had never happened.

Mr Weston, 57, a former Welsh Guardsman who suffered severe burns when the vessel Sir Galahad was attacked during the Falklands War, chatted to Harry.

He said later: “It was wonderful to be invited to these celebrations to mark 50 years since the Prince of Wales’s investiture.

“I was seven years old at the time so I’ve got a lot to thank him for – such as the day off school and the jelly and ice cream at the street party. I watched it at my grandmother’s house in our village called Nelson.”

Mr Weston, president of Debra, a charity which supports those with a genetic skin disorder, said they talked about wound healing and a new laser treatment to deal with scar tissue.

He added: “We also joked about Wales defeating England in the Six Nations rugby.

“I also warned him and the duchess it serves him right as they will be getting plenty of sleepless nights when the baby is born.

“He said if they have anymore than two it will serve him right,” Mr Weston added.

The Duke and Duchess of Sussex meet Simon Weston and Welsh Secretary Alun Cairn
The Duke and Duchess of Sussex meet Simon Weston and Welsh Secretary Alun Cairns (Dominic Lipinski/PA)

Charles was created the Prince of Wales aged nine on July 26 1958, and among the guests at the palace who saw him invested with the title 11 years later was Sir Nicholas Soames, his former equerry.

Recalling the day, he said: “It was the most beautiful ceremony, Lord Snowdon had created a sort of set within the walls of the castle that was very contemporary but the service is timeless, the investiture of a prince of Wales is one of the oldest services there is – and it’s very, very beautiful.

“Packed with people, a very solemn occasion but also a very joyous occasion.”