Prince Philip, Queen Elizabeth II’s husband, has died aged 99, Buckingham Palace has announced.
In a statement shortly after midday, the palace said: “His Royal Highness passed away peacefully this morning at Windsor Castle.”
The high-ranking nobleman, who was the longest-serving consort in British history, had returned to Windsor Castle on 16 March after spending a month in hospital.
The palace said further announcements would be made “in due course”.
“The Royal Family join with people around the world in mourning his loss,” read part of the statement.
Speaking at Downing Street, the Prime minister added: “He helped to steer the Royal Family and the monarchy so that it remains an institution indisputably vital to the balance and happiness of our national life,”
Mr Johnson said he received the news of Prince Philip’s death “with great sadness”.
“Prince Philip earned the affection of generations here in the United Kingdom, across the Commonwealth, and around the world,” he said.
Scotland’s First Minister Nicola Sturgeon said she was “saddened” by the duke’s demise.
“I send my personal and deepest condolences – and those of Scot government and the people of Scotland – to Her Majesty The Queen and her family.” She tweeted.
Labour leader Sir Keir Starmer said the UK has lost an “extraordinary public servant”, adding he would be remembered most of all for his most “extraordinary commitment and devotion to the Queen”.
“He consistently put the interests of others ahead of his own and, in so doing, provided an outstanding example of Christian service.” said Canterbury Archbishop Justin Welby.
The prince married Princess Elizabeth in 1947, five years before she became Queen, and was the longest-serving royal consort in British history.
In March, the Duke of Edinburgh left King Edward VII’s hospital in central London after a month-long stay for treatment.
He underwent a procedure for a pre-existing heart condition at another London hospital – St Bartholomew’s.
Prince Philip and the Queen had four children, eight grandchildren and 10 great-grandchildren.
Their first son, the Prince of Wales, Prince Charles, was born in 1948, followed by his sister, the Princess Royal, Princess Anne, in 1950, the Duke of York, Prince Andrew, in 1960 and the Earl of Wessex, Prince Edward, in 1964.
Prince Philip was born on the Greek island of Corfu on June, 10, 1921.
His father was Prince Andrew of Greece and Denmark, a younger son of King George I of the Hellenes.
His mother, Princess Alice, was a daughter of Prince Louis of Battenberg and a great-granddaughter of Queen Victoria.