Kate Middleton
Kate Middleton wears mint green dress similar to Princess Diana's in her recent royal engagement. Pictured: Middleton attends a symposium she has organised on early intervention for children and families at the Royal Society of Medicine on March 21, 2018 in London. Getty Images/Geoff Pugh

Kate Middleton is fulfilling her final duties before she welcomes her third child.

On Wednesday, the Duchess of Cambridge paid a visit to the Royal Society of Medicine. The pregnant royal stunned in her mint green ensemble by her favorite British designer, Jenny Packham. Middleton paired the outfit with nude pumps.

According to Harper's Bazaar, Middleton's ensemble is reminiscent of Princess Diana. The late Princess of Wales owned a number of mint green clothing as well. The publication shared a photo of Princes William and Harry's mom in her famous suit of the same shade.

The snap was taken in 1996 when Princess Diana attended a symposium to discuss breast cancer at Northwestern University in Chicago. She accessorized with a pearl choker, a black quilted Chanel bag and Chanel slingback heels that gave her her signature elegant look.

As for Middleton, she also attended a symposium. The expectant mom gave a speech and thanked the people she considered her mentors.

Prince William's wife recognized the friendly faces who welcomed her and freely shared their knowledge with her. According to Middleton, those people were patient with her when she asked them questions about the complex range of issues that she wished to learn.

"Academics who have shown me their groundbreaking research into the cause of perinatal and postnatal depression and how they are addressing these issues into the clinics; those who I have visited over the years, who provide crucial links within the community and whose services help families with essential parenting support and guidance; and other wonderful organisations which have done so much to improve support for the emotional wellbeing for children in school," Middleton said (via Express). "I could name so many of you but I am utterly grateful to you all for giving me your time and your wisdom so freely."

According to People, Middleton's recent outing is one of her final royal engagements before giving birth. The duchess is due to deliver her and Prince William's third baby in April.

The palace has not yet confirmed her due date, but some of their fans are betting that the newest member of the royal family might arrive either on St. George's Day, on the couple's wedding anniversary or on Princess Charlotte's birthday.

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