Kate says the Queen was thrilled to have 'another little girl' in Princess Charlotte

The Duchess of Cambridge, née Kate Middleton, revealed that the Queen was ecstatic over the arrival of Princess Charlotte last May. The duchess also spoke of her own happiness at the birth of a baby girl during her first-ever solo TV interview since becoming a member of the royal family.

"It's very special having a new little girl…I feel very, very lucky that George has got a little sister," Kate said. "The Queen was really thrilled that it was a little girl, and I think as soon as we came back here to Kensington she was one of our first visitors here."

TAP TO VIEW FULL GALLERYThe Duchess of Cambridge said the Queen was "thrilled" at the birth of Princess Charlotte.

Kate's interview appears in the ITV documentary Our Queen at Ninety, which airs on Easter Sunday. During the discussion, the 34-year-old also opens up about the Queen's special relationship with her great-grandchildren, and reveals what Prince George calls the monarch.

The royals have made no secret of their delight at welcoming another baby princess into the family, and just days after Princess Charlotte's birth the Queen told guests at a Buckingham Palace garden party: "We love having another girl."

The Queen was among the first to visit Princess Charlotte.

The 89-year-old also mentioned the new addition to the royal family in her Christmas speech, which aired on Christmas Day. "One of the joys of living a long life is watching one's children, then grandchildren, then great-grandchildren, help decorate the Christmas tree," she said. "And this year my family has a new member to join in the fun."

The Queen met her great-granddaughter for the first time at Kensington Palace, three days after her birth. The monarch was said to have been honoured that William and Kate had chosen to name their first daughter Charlotte Elizabeth Diana in recognition of her, and has since continued to treat both Charlotte and her brother George every time she pays them a visit.

Kate explains: "She always leaves a little gift or something in their room when we go and stay and that just shows her love for her family."

HELLO! Canada magazine is available for your tablet and smartphone. Get HELLO! Canada, PEOPLE, Vanity Fair and over 100 more of the world’s best magazines for one low monthly price at Texture by Next Issue. CLICK HERE to sign up for a free trial.