Kate Middleton has been a hands-on mother, a devoted wife, and a conscientious member of the Royal Family. Lately, the Duchess of Cambridge has been assigned some of Queen Elizabeth II's royal patronage in the occasion of her 90th birthday.

It is a royal tradition that when a reigning monarch reaches the age of 90, he/she delegates royal duties to prepare for a smooth transition of power. In the case of the Queen who was dubbed as the longest-reigning monarch, she has given responsibilities to Prince William's wife, Kate Middleton.

According to Royal Fans, Kate Middleton has assumed Wimbledon, Barnardo's, Save the Children UK and NSPCC. Prince William was assigned the Wales' WRU leadership.

Aside from her royal duties, the mother of Prince George and Princess Charlotte is a doting mother to her two kids. In fact, she has to stay with her son in the Palace for his schooling. Her husband will be staying close to her as he has resigned from his military job as a pilot.

Lately, supporters of the Princess were worried to see her losing weight. According to Radar Online, Kate Middleton's skinny appearance left the royal followers worried. Has the Duchess spread her too thinly because of her countless duties?

During Valentine's Day, she was out meeting new cadets that her celebration with Prince William has to be deferred. The royal couple has been on frequent travels even bringing their children with them. Being future King and Queen, they assumed duties to prepare them for the leadership in the Kensington Palace.

Middleton and Prince William attended the 70th annual British Academy Film Awards (BAFTAS) and many noticed that the Princess looked skinny. Has she been overworking? Did she find that being a member of a Royal Family is tiring and demanding? But looking at her beautiful face, Kate Middleton Duchess of Cambridge is undeniably happy.