Throughout the weekend, particularly on the final day, Princess Charlotte was seen helping her mother the Duchess of Cambridge take care of the other royal children, including her younger brother.

During the Jubilee Pageant on Sunday, Zara Phillips, and Mike Tindall’s daughter Mia, 8, was seen looking rather restless and upset as she got a cuddle from Kate Middleton with her face nuzzling the Duchess’s shoulder.

Princess Charlotte could be seen stroking Mia’s back as Kate fixed the young girl’s headband.

With the Duchess of Cambridge busy with helping the young members of her family, the young Princess helped her by disciplining Louis.

During the carriage ride to the Trooping the Colour parade, the young royal could be seen pulling Louis’ arm down to stop his manic waving.

It had very little effect though as the young Prince started waving the minute she took her hand off his.

Again, on Sunday when all three of the Cambridge children were out in public, Charlotte brought Louis’ hand away from his mouth to stop him from sucking his fingers.

Prince Louis was then seen to be mocking his sister by copying her gesture in an act typically seen in sibling relationships before Kate also puts his hand down into his lap.

During the long Pageant, Prince Louis was also seen pulling faces at his mum with him blowing a raspberry at her and at one point putting his hand over her mouth in a way that all mothers can relate to.

It’s not only her younger brother that gets a dressing down, but Charlotte was also seen showing Prince George how to stand on the balcony, which he immediately followed.

The two eldest Cambridge children have learnt many lessons in recent months on royal behaviour and etiquette in public.

For the first time, the two children were seen on a public engagement in Cardiff with their parents Prince William and the Duchess.