LONDON — Back to duty.

Kate Middleton stepped out on Thursday to support the England national wheelchair rugby league team at Hampton Court Palace wearing a bespoke Roland Mouret burgundy red pantsuit with Daniella Draper jewelry.

The Princess of Wales is a patron of the Rugby Football League.

She wore the two-piece suit last 12 months on a visit to Boston, where she was in the town with Prince William to present the Earthshot Prize for sustainability on the MGM Music Hall at Fenway.

Her necklace retails for 825 kilos and is described as “manifesting your biggest dreams, bringing in additional success and prosperity” on the brand’s website.

For the reason that release of Prince Harry’s memoir “Spare,” Kate’s and William’s popularity has declined, in line with a latest poll by market research firm Ipsos Mori.

The poll showed that the Waleses’ rankings have dropped by 15 points.

On the discharge date of “Spare,” the book became the fastest-selling nonfiction book of all time, in line with the Guinness Book of World Records.

The British royals are slowly returning to their business as usual despite the knock-on effect of “Spare.”

Stephen Bates, journalist and creator of the book “Royalty Inc: Britain’s Best-Known Brand,” said that Prince Harry has done the tabloids “an incredible favor in the intervening time because they’re selling pages and pages. In the long run, [Harry’s book] will not be going to stop the tabloids — or anyone else — from covering the royals. It’s a part of their job, and it’s a part of the royals’ [job] to be seen.”

Generating publicity, he said, is a key royal responsibility. William the Conqueror knew it, as did Queen Elizabeth I, Queen Victoria — and nearly every other British monarch over the past 957 years.

“It’s a part of what being a royal is, and complaining doesn’t make any difference. It goes with the territory. If the time comes when Britain wants one other type of executive government, then [the royal family] can creep into obscurity, but I don’t see that occuring anytime soon because they’re still hugely popular,” Bates said.