Prince William and Kate spend time with adorable Princess Estelle and Prince Oscar of Sweden

By Emmy Griffiths

The Duke and Duchess of Cambridge may now be well-acquainted with Sweden's crown couple, but on Wednesday (Jan. 31) they got to spend time with the adorable young Swedish royals, siblings Princess Estelle and Prince Oscar! After two days of touring in Stockholm, Sweden while on their royal tour, the couple enjoyed a relaxing tea at Crown Princess Victoria and Prince Daniel's home, Haga Palace. And while Prince George and Princess Charlotte were unfortunately back in the UK at school, here's hoping the royals found time to plan a future playdate for the adorable foursome.

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Prince William knelt down to say hello to the pair

Snaps of the couple meeting the youngsters were shared on the Swedish royal family's official Instagram account, and read: "In the afternoon, the Duke couple visited the Crown Princess's family at Haga Castle." Princess Estelle seemed to be taking good care of her baby brother, and held his hand as William and Victoria knelt by them. The pair then sat with their parents as the group enjoyed a cup of tea and a chat together.

READ: The best moments from Prince William and Kate's royal tour

Prince William and Kate had tea at Haga Palace, home of Victoria and Daniel

Kate, who is pregnant with her third child, looked beautiful in an off-white bouclé dress from Alexander McQueen for the occasion. Earlier that day, the Duchess opted for a red and white Catherine Walker coat as she joined her husband and the Swedish royals for a visit to the Karolinska Institute - one that had many remembering an iconic houndstooth look worn by her late mother-in-law Princess Diana.

GALLERY: The cutest photos of Sweden's Princess Estelle

They then visited the Matteusskolan school to meet children who have taken part in the YAM programme during one of their mental health activity sessions. The Duke shook hands with the crowd at the school, and joked with the children that they had "cold hands", as well as complimenting their Swedish flags. Since arriving in Sweden, the pair have taken part in a Bandy hockey event, visited the Nobel Museum, were the guests of honour at a black-tie dinner and even met Hollywood stars Alicia Vikander and Stellan Skarsgård.

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