Princess Beatrice's husband Edoardo Mapelli Mozzi has referenced the couple's unborn child in an emotional post about his late step-father.
The millionaire property developer shared a number of photos of Christopher Shale to mark the 10th anniversary of his death, saying that being his stepson was the "greatest honour of his life".
He explains that he wishes his stepdad got to meet his son Wolfie and the child he is expecting with Beatrice, the Queen's granddaughter, later this year.
He wrote: "Chrisdog, Pups, I can’t believe it has been 10 years.
"Not a day goes by without me thinking of you and leaning on all the lessons you taught me.
"You once said on my 18th birthday that being my stepfather was the greatest honour and privilege of your life. I echo this, being your stepson is the greatest honour of my life and I would never be standing here today without you.
"I know how proud you would be of us all today and so wish you had got to meet your 3 and soon to be 4 Grandchildren.
"What joy they would have brought you. I was just Wolfie’s age when you came into my world and changed everything.
"You always believed in me, with unconditional love. You taught me honestly, laughter, hard work and empathy.
"I love you today and always."
Beatrice and Edo announced they are expecting their first child back in May via a statement from Buckingham Palace.
It read: "Her Royal Highness Princess Beatrice and Mr Edoardo Mapelli Mozzi are very pleased to announce that they are expecting a baby in autumn of this year.
"The Queen has been informed and both families are delighted with the news."
The baby will be the Queen's 12th great-grandchild following the birth of Meghan Markle and Prince Harry's daughter, Lili.
The couple tied the knot in a secret lockdown wedding in Windsor last year, attended by the Monarch and Prince Philip.
They were forced to cancel their original celebrations due to lockdown restrictions.
