Graham Smith, CEO of the organisation, explained this protest is one of a series planned in the run-up to the Coronation with the aim of not just opposing the historic event but also calling for a debate on whether the country should retain the constitutional monarchy.

He said: “With all our protests, we’re determined to get the message across that it’s ok to protest against the royals. Increasingly people are either losing interest in the royals or turning against them. Instead of a pointless, expensive, Coronation we need a serious public debate.

“We believe the British public should be asked, do you want Charles or a choice? The tide is starting to turn against the monarchy and we need a serious debate about its future.

“Recent polls have shown support among people under 45 has dropped below 50 percent. There is a clear need for a full, informed public debate.

“Republic will be protesting at the Coronation, driving home the message that this is not a national celebration, but promotion of the monarchy at huge cost to the taxpayer. The time for change is here.”

Mr Smith referred to a poll carried out on 2,124 UK adults between January 5 and 6 for the Sunday Express, which suggested young people are keener on electing a head of state than retaining the monarchy.

Among those polled, 44.4 percent of people aged between 18 to 24 said to prefer a republic against 37.5 percent who said they supported the monarchy.

Among people aged between 35 to 44, 38.3 percent said to favour the election of a head of state, while 47.8 percent said to prefer having a monarch.

Overall, the poll suggested Britons are still in favour of their country retaining the current system, with 54.7 percent of people across all ages saying they supported the monarchy against 32.7 percent speaking in favour of a republic. 12.6 percent responded “don’t know” to the question about the monarchy.

The upcoming protest is one of a series being staged by Republic in the run-up to the Coronation of the King and Queen on May 6 at Westminster Abbey.

Last month, the King’s visit to Milton Keynes was overshadowed by placard-waving members of Republic, who gathered among royal well-wishers with signs reading “Not my King”.

Charles, who headed to Milton Keynes alone due to the Queen Consort Covid-19 diagnosis, didn’t shy away from protesters and got close to them as he shook hands with fans standing nearby.

While he surely noticed the protesters, the King didn’t acknowledge their presence and continued to look in high spirits during his brief walkabout.

On March 7, Charles and Camilla will meet with community groups, volunteers, local businesses, conservation projects and arts organisations based in Colchester.

Moreover, they will unveil the name of Colchester Zoo’s newest addition, a baby white rhino.