The anniversary celebration begins when George, Charlotte and Louis join the procession

The platinum jubilee crowd was treated to a view of the children of the Duke and Duchess of Cambridge who took part in their first carriage procession when the historic celebrations marking the 70th anniversary of the Queen’s reign began.

Cheers thousands of spectators rose to The Mall when they caught their eye Prince George, Princess Charlotte and the prince Louis with proud father Kate and the Duchess of Cornwall.

The traditional carriage left Buckingham Palace on the eve of Trooping the Color, also known as the Birthday Parade – the beginning of four days of celebrations in honor of the Queen.

The nation hosts special extended holiday weekends with pomp, splendor and stellar festivities, during which celebrities and audiences gather in millions in honor of the monarch.

Thousands of volunteers in Union flags, parties and plastic tiaras flocked to central London for the Trooping spectacle.

Behind the young Cambridge and the Duchess’s carriage, known as the barush, was followed by another, in which were the Earl and Countess of Wessex and their children Lady Louise Windsor and Viscount Severn.

Eight-year-old George, seven-year-old Charlotte, and three-year-old Louis smiled and waved enthusiastically as they sat in a row, and Louis, Jr., was among his older siblings.

At one point Charlotte took responsibility and pushed Louis’s hand down as he continued to wave.

The princess, dressed in a cornflower blue dress, and her brothers squinted in the morning sun during their royal jubilee.

The Duke and Duchess of Gloucester and the husband of the Princess Royal Vice-Admiral Sir Tim Lawrence handled in the last carriage.

On horseback in his uniform sat the Prince of Wales, the Duke of Cambridge and the Princess of the Royal, shining with their military regalia – including their new platinum commemorative medals.

The children of Cambridge bowed their heads when the national anthem was played upon their arrival at the Horse Guards Parade.

George was dressed in a navy blue suit, white shirt and blue tie for the event, and Louis was dressed in a white navy top that mimicked the clothes his father wore in his youth in Trooping in 1985.

Charlotte’s hair was rubbed, trimmed with two thin plaits fastened with a blue ribbon.

Meanwhile, the Queen has arrived at Buckingham Palace, ready to deliver a salute from the balcony accompanied by her cousin the Duke of Kent, Colonel of the Scottish Guard, when the cavalry regiment and guard return from the square.

The jubilee monarch, who is now 96 years old, is facing constant mobility problems and has decided to stay at his royal residence.

The once-in-a-lifetime anniversary celebrations will feature members of the monarchy, celebrities from the UK and around the world, and people from all parts of the UK will gather to recognize the Queen’s legacy over the weekend.

The Queen will return to the balcony for the second time on Thursday, accompanied by working members of the Royal Family and Cambridge children, to observe the flight of Royal Air Force aircraft.

Thanksgiving will be held in St. Paul’s Cathedral on Friday, and Epsam Derby Day on Saturday, and tonight Queen + Adam Lambert and Diana Ross will be the main theme of the BBC’s palace party.

On the last day, the revelers will take to the streets of London for a jubilee contest, in which every decade of the monarch’s reign will be celebrated with puppets, dancers and music of “national treasures”.