Royal wedding news: Expert reveals trick that made Prince George and the other kids behave during Prince Harry and Meghan Markle's ceremony

Who could miss the 10 adorable well-behaved children when Prince Harry wed Meghan Markle on Saturday. The children between the ages of two to seven were part of the main entourage helping the Duchess of Sussex walk down the aisle. It actually took several rehearsals to guide the kids to make sure that they don't cause an incident during a solemn ceremony inside the church.

Meghan Markle walks down the aisle with her pageboys and flower girls.REUTERs/Danny Lawson

Prince George, 4, the third in line to the British throne, and his sister Princess Charlotte, 3, walked behind the bride at the church, along with eight other children, without straying or misbehaving and according to etiquette expert Myka Meier, the royals and the kids were on their best behavior because of constant practices weeks before the wedding.

"Etiquette training for the royals starts as soon as they're old enough to sit at a table," Meier told People. "The children in the wedding would have been very well prepared through rehearsals and even learned wedding specific behavior and protocol," she added.

Meier added that members of the royal family and their aides had to make sure that the children behaved through positive reinforcement. Claudia Braby, who was a guest at the royal wedding, shared that one of the little girls grew restless but was told she could watch "Peppa Pig" later on to help her calm down.

Some reports teased that the kids were not on their best behavior during the first rehearsal and that the mothers, including the Duchess of Cambridge, were drafted in to succeeding rehearsals to guide them.

After the wedding, Prince George and Princess Charlotte's nanny, Maria Teresa Turrion Borrallo, was also seen walking behind the kids as the bride and groom walked out of the church as husband and wife.

Photos also showed Princess Charlotte smiling with her mother as she waved at the crowd from the steps of the church. Prince George, on the other hand, followed his father Prince William and appeared to hide from the cameras and the crowd.