Prince Harry: He played this prank on his grandmother

Known as the "prankster" of the royal family, Prince Harry once lived up to his name – and tricked his grandmother Queen Elizabeth in a very funny way.

Strictness, principles, attitude – the life of a royal family is particularly shaped by the factors discipline and rules of conduct. But the royals are also happy about a little breath of fresh air in the strict royal life every now and then. Prince Harry in particular is known for his jokes and didn't stop at the Queen before.

As Bryan Kozlowski writes in his soon-to-be-published book "Long Live the Queen: 23 Rules for Living from Britain’s Longest-Reigning Monarch", Harry grabbed the Queen's personal cell phone at a favorable moment – and played a pretty funny prank …