Kate Middleton has the sweetest nickname which is a perfect reminder of Princess Diana

ok.co.uk:

A vital part of a working royal's job is raising awareness of charities and organisations close to their hearts. Whether it's King Charles and the Prince of Wales' dedication to the environment or The Duchess of Edinburgh's plight to raise awareness for causes such as avoidable blindness and sexual violence in conflict areas, many royals are advocates for important causes.

The Princess of Wales is no different as she has become a leading voice in the field of early years development and looking after children's mental health.

She launched Shaping Us in 2023, a project she called her "life's work" which focuses on how the first five years of our lives impact the people we become.

Kate's work has attracted a great deal of attention and royal fans love her for it, so much so that they have come up with a sweet nickname for her.