Prince George has been photographed alongside three other generations of the royal family for a new set of commemorative stamps marking the Queen's 90th birthday.
The 2-year-old had to stand on four foam bricks in order to be level with his father, Prince William, and grandfather Prince Charles, as well as his great-grandmother, in a photo taken last summer.
The Queen turns 90 tomorrow, and on Friday she will have lunch with US president Barack Obama and first lady Michelle Obama at Windsor Castle.
In interviews marking his grandmother's actual birthday – her official birthday is on a Saturday in June – Prince William praised the impact she had had upon his life.
"Having lost my mother at a very young age, it has been particularly important for me that I had somebody like the Queen to look up to and who has been there and has understood some of the more complex issues when you lose a loved one," the Duke of Cambridge told Sky News, in a documentary to be screened tonight.
He also recalled a time from his childhood when the Queen gave him "the most almighty bollocking" while playing with his cousins.
“We were chasing Zara around who was on a go-cart, and Peter [Phillips] and I managed to herd Zara into a lamppost. And the lamppost came down and nearly squashed her, and I remember my grandmother being the first person out at Balmoral running across the lawn in her kilt," he said.
The Queen, Prince William said, "came charging over and gave us the most almighty bollocking, and that sort of stuck in my mind from that moment on".
“I take duty very seriously. I take my responsibilities very seriously. But it’s about finding your own way at the right time and if you’re not careful duty can weigh you down at a very early age," he said.
“I think you have got to develop into the duty role.”
Matthew Champion is a deputy world news editor for BuzzFeed News and is based in London.
Contact Matthew Champion at email@example.com.
Got a confidential tip? Submit it here.