The pair were expected to attend the Tusk Conservation Awards gala.

By PEOPLE.COM/Simon Perry
Updated Nov 21, 2019 @ 2:00 pm

Kate Middleton has pulled out of an event alongside husband Prince William on Thursday evening.

Palace sources tell PEOPLE her decision not to attend the Tusk Conservation Awards gala is “due to the children.” William will still be in attendance.

The sources didn’t provide any further information, but earlier on Thursday, Kate took part in a tea party for the winners at Kensington Palace with William.

The outing, which will take place at the Empire Cinema in Leicester Square, with a reception to follow at the nearby National Portrait Gallery — honors those who protect Africa’s wildlife.

The awards are run by the Tusk Trust, which William has been Royal Patron of since December 2005. At the awards, William is set to present three awards before delivering a short speech.

The Tusk Award for Conservation is given to an emerging leader in conservation in recognition of their contribution to date. The Tusk Wildlife Ranger Award recognizes the dedication and bravery of rangers working to protect Africa’s increasingly threatened wildlife. And the Prince William Award for Conservation in Africa is a lifetime achievement award which commends outstanding dedication and contribution to conservation.

Kate and William stepped out for a glam date night earlier this week when they attended the annual Royal Variety Performance at the Palladium Theatre in London on Monday. The royal parents, who left Prince George, 6, Princess Charlotte, 4, and 1-year-old Prince Louis back home at the palace, shared new details about their three kids as they met with young performers.

Kate was given a bouquet of flowers by 14-year-old Nuala Peberby and 9-year-old Fred Wilcox, who star in the West End musical Mary Poppins. Nuala revealed after the meeting that the royal mom told her that George and Charlotte enjoy putting on little shows.

“She said that her children love performing at home, particularly Charlotte,” the young actress said.

Kate and William, both 37, were also captivated by 6-year-old Aurelia from the acrobatic group Zurcaroh. The royal mom told the talented performer that George and Charlotte also loved doing acrobatics at home, particularly handstands and cartwheels.

Kate may be raising heirs to the British throne, but first and foremost, they’re her three kids.

“She wants to emulate her upbringing, living in the countryside with a close-knit family,” a friend of the royal previously told PEOPLE. “She desperately wants that normality for her own kids.”

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