Prince William and his brother Harry have led tributes to the Duke of Edinburgh who passed away on Friday, aged 99.
William, the Duke of Cambridge, said Prince Philip was an extraordinary man whose life had been defined by service to his country, the Queen and the Commonwealth.
"I will miss my Grandpa, but I know he would want us to get on with the job," William, 38, said in a statement on Monday. "My grandfather was an extraordinary man and part of an extraordinary generation."
"My grandfather's century of life was defined by service – to his country and Commonwealth, to his wife and Queen, and to our family."
Harry, the Duke of Sussex, also released a heartfelt tribute to his grandfather on his Archewell foundation website.
He said Philip would be sorely missed by his wife Meghan, son Archie and their unborn daughter.
"He was my grandpa: master of the barbecue, legend of banter, and cheeky right 'til the end," Prince Harry said. "Grandpa, thank you for your service, your dedication to Granny, and for always being yourself.
"He has been a rock for Her Majesty The Queen with unparalleled devotion, by her side for 73 years of marriage, and while I could go on, I know that right now he would say to all of us, beer in hand, 'Oh do get on with it!'"
Harry arrived in London from California on Monday and will quarantine in accordance with UK coronavirus guidelines before Philip's funeral at Windsor Castle on Saturday.
Buckingham Palace said Meghan, who is pregnant, will not attend on the advice of her doctor.
Prime Minister Boris Johnson led tributes in parliament to Philip, who he said had sustained the monarchy throughout the extraordinary Elizabethan age.
"He shaped and protected the monarchy," Mr Johnson said.
"He provided one particular service that I believe we in the House [of Commons] know in our hearts was the very greatest of all: In the constant love he gave to Her Majesty the Queen, as her liegeman of life and limb, in the words he spoke at the Coronation - he sustained her throughout this extraordinary second Elizabethan age, now the longest reign of any monarch in our history," he said.