The three portraits of the Duchess of Cambridge taken before her 40th birthday are on tour. According to Britain's National Portrait Gallery, the portraits of Duchess Kate, who turned 40 in ...

Britain's Kate, Duchess of Cambridge, visits a creative workshop run by the National Portrait Gallery's Hospital Programme, at Evelina London Children's Hospital, in London, Jan. 28, 2020.

The Duchess of Cambridge steals the spotlight at the National Portrait Gallery gala The 35-year-old royal looked stunning in a deep-emerald ensemble at the prestigious event.

A museum visitor admires a portrait of Catherine, Duchess of Cambridge at the National Portrait Gallery in London, England. Robert Alexander/Getty Images.

Artist Paul Emsley poses for photographers next to his newly-commissioned portrait of Kate, Duchess of Cambridge, on display at the National Portrait Gallery in London, Friday, Jan. 11, 2013.

Prince William and Kate Middleton, the Duke and Duchess of Cambridge unveil portrait of the Queen in New Zealand | Australian Women's Weekly content brought to you by Now to Love ...

Catherine, the Duchess of Cambridge, joined Chirlane McCray, the wife of Mayor Bill de Blasio, in a visit to the Northside Center for Child Development on East 110th Street.