Kate was spotted chatting to three-year-old Rania about Peter Rabbit as they played with arts and crafts, while Kate also spoke to her mother about what they had seen in the Gallery.
The programme for young children launched in September having been developed in partnership with local family hubs and nurseries, and hopes to encourage creative learning and playing in the Gallery.
The refurbishment of the Gallery began in 2020, with it finally being reopened to the public on Thursday June 22.
Kate arrived for the official reopening earlier today dressed in a white outfit by Self Portrait with black detailing as she met with regarded artist Tracey Emin and project architect Jamie Fobert.
Tracey Emin was commissioned to create an artwork for the Gallery’s new doors, which incorporated 45 carved brass panels to represent ‘every woman, throughout time’.
The Princess of Wales also viewed some of the Gallery’s newest acquisitions, including ‘Portrait of Mai (Omai)’ by Joshua Reynolds, a highly regarded artist.
The sought-after portrait was jointly acquired by the Gallery and Getty this year after a historic campaign to raise the funds, with both institutions agreeing to share the painting to maximise access for the public and maintain research and conservation care.
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The Princess saw the new exhibition ‘Yevonde: Life in Colour’ which highlights the life and work of pioneering London photographer Yevonde who promoted the use of colour in her pictures in the 1930s.
However there is one portrait that will no longer be on display, one of Princes William and Harry which was painted in 2010 by artist Nicky Philipps.
It depicts the two princes, both in their 20s at the time, wearing the dress uniform of the Blue and Royals, before the feud which has developed between them since Harry’s marriage to Meghan Markle and their relocation to California.
They sat for the portrait at the artist’s home in South Kensington, with Ms Philipps recalling they were “so sweet, so close.”