The Prince and Princess of Wales have shared a new family portrait as they mark 15 years of marriage.

In the photo, William and Catherine are seen lying in the grass, smiling, with their children - Prince George, Princess Charlotte and Prince Louis - and their dog during the Easter break. It was taken by photographer Matt Porteous in Cornwall.

The image was shared on social media alongside a heart emoji and the caption: "Celebrating 15 years of marriage".

The royal couple married at Westminster Abbey in London in 2011, in a televised ceremony that drew an estimated audience of billions from across the world.

The prince and princess, who met at the University of St Andrews, spent their first three years of married life in Anglesey, where Prince William undertook helicopter training to become an RAF search and rescue pilot.

"I loved my time up here. It was great funโ€ฆ I do miss it. I miss the job, I miss the camaraderie," Prince William told trainees at the station on Tuesday.

"Your time up here will go quickly, that's the thing. You'll look back with fond memories," he said.

They welcomed their first child, Prince George, in 2013. Princess Charlotte was born two years after, followed by Prince Louis in 2018.

He tells US lawmakers his address comes the two nations' relationship is "more important" than ever "in times of great uncertainty".

The night was filled with designer fashion, luscious bouquets, billionaire guests and joke-filled speeches.

During the White House state dinner, the King gifted the US president a bell from his WW2 submarine namesake, 'HMS Trump'.

It was the first time a sitting British monarch had addressed the chamber since Queen Elizabeth II in 1991.

The US president was speaking about his mother Mary's love for the Royal Family during a speech at the White House, attended by the King and Queen.