The Duke of Sussex is celebrating his first Father's Day with his six-week-old son Archie Mountbatten-Windsor, sharing a photograph of the baby boy on Instagram.
The Duke and Duchess posted a sepia-toned image of Archie, half hidden by his father's hand.
With Prince Harry's wedding ring in the foreground, Archie - who is being held by his father - clasps onto his middle finger and peers at the camera.
A caption reads: "Happy Father’s Day! And wishing a very special first Father’s Day to The Duke of Sussex."
It is the clearest image fans have seen yet of Archie, and follows an Instagram picture posted on American Mother's Day of just his feet. This time, unlike his first appearance as a newborn, he is wide awake.
The Duke and Duchess welcomed their first born on May 6, with the smitten new father introducing Archie to the world alongside proud mother Meghan when the newest addition to the royal family was just two days old.
Announcing his arrival on May 6, the duke said: "This little thing is absolutely to-die-for, so I'm just over the moon."
The Sussexes are raising seventh in line to the throne Archie in the sanctuary of Frogmore Cottage - their new bolthole in Windsor Home Park in Berkshire, close to the Queen's residence Windsor Castle.
The Grade II listed 10-bedroom property is set close to the winding lakes, wooded mounds, glades, walks and bridges of the gardens at Frogmore.
Hands-on-father Harry has been relishing his new role as a parent after years of watching others bring up their families.
The duke said at Archie's first photocall at Windsor Castle: "It's great. Parenting is amazing.
"It's only been two-and-a-half days, three days, but we're just so thrilled to have our own little bundle of joy and be able to spend some precious times with him as he slowly, slowly starts to grow up."
The Duchess said of her husband and her son: "It's magic, it's pretty amazing. I have the two best guys in the world so I'm really happy."
Harry previously spoke about his desire to start a family, saying: "I've longed for kids since I was very, very young."
Father's Day in the UK - June 16 - is celebrated on the same day in the US - the third Sunday in June.
On Mother's Day in the US this year - May 12 - the couple shared an Instagram post of Archie's feet being cradled by Los Angeles-born Meghan.
It was captioned: "Paying tribute to all mothers today, past, present, mothers-to-be, and those lost but forever remembered.
"We honour and celebrate each and every one of you."
The message was widely interpreted as referring to the late Diana, Princess of Wales, with her favourite flower, forget-me-not, included in the picture, as well as the Duchess’ mother Doria.
The Sussex's Father's Day post, in contrast, singled out only the Duke, rather than including the Prince of Wales, or the Duchess's estranged father Thomas Markle.
The photograph sent fans of the Sussexes into overdrive, winning a million “likes” in around three hours.
They will soon be offered another glimpse of baby Archie, it has emerged, with his christening scheduled for early July at St George’s Chapel, Windsor Castle.
The Duke and Duchess will follow tradition by dressing Archie in a replica of the Honiton lace christening gown dating back to Queen Victoria, with a ceremony conducted by the Dean of Windsor and Archbishop of Canterbury, the Sunday Times reported.
The Queen is expected to miss the christening due to a diary clash, with the Prince of Wales, Duchess of Cornwall and Duke and Duchess of Cambridge due to attend.
Buckingham Palace declined to comment on the arrangements.
The Royal Family’s other social media accounts also shared Father's Day social media posts, with Kensington Palace posted a simple message honouring the Duke of Cambridge, his children and his father.
Happy Father’s Day.— Clarence House (@ClarenceHouse) June 16, 2019
Prince Charles and Princess Anne play on a seesaw with the help of their father The Duke of Edinburgh while The Queen looks on during a visit to Balmoral in 1957. pic.twitter.com/u39tVrKEcj
The pictures were accompanied with the message "Happy Father's Day".
Clarence House did likewise, with one photograph of a young Prince Charles and Princess Anne with the Duke of Edinburgh, and a second of the Prince with his own two sons.
A message read: "To Dads everywhere, have a wonderful