Kate Middleton paid her respects to Prince Philip at his funeral at Windsor Castle last weekend. She was one of 30 royals who attended to show their respects and support the Queen.
Kate and Prince William were among those on the guest list, which had been limited due to the Covid pandemic.
Other royals such as Sophie, Countess of Wessex, Prince Harry and Zara Tindall were also present.
During the service, the Queen was seen sitting alone in line with current restrictions of the coronavirus.
While they could not physically be with the Queen during the service, it is likely senior royals will now rally round to show their support to the monarch.
READ MORE: Kate Middleton shows solidarity with Queen in pearl necklace
Royals are expected to continue official duties where it is appropriate.
The Duchess of Cambridge has been a working member of the Royal Family since she married Prince William 10 years ago.
During this time, she has been spotted at engagements with the Queen on various occasions.
Commenting on their relationship, body language expert Judi James suggested Kate is someone the Queen gets on with well.
She told Express.co.uk: “The body language signals between the Queen and Kate currently suggest a very relaxed, warm and relatively easy-going friendship with both women enjoying the other’s company.”
The two royals have seemed to enjoy being out together in the past and the Queen will look out for Kate when out, Judi commented.
The expert continued: “The Queen always appears to affirm the fact that, despite her age, she is not in any need of support or aid.
“But she often looks happiest when her granddaughter-in-law and future Queen accompanies her or acts as co-host.
She stated: “This stage of their relationship only seems to have been achieved with time.
“It probably owes a lot to Kate’s visual signals of growing confidence.
“She seems happier to acknowledge that she is popular in her own right now and that she has earned the respect and possibly admiration of the Queen too.”
Kate has taken on increasing responsibilities in the Royal Family since she first joined.