Prince Philip, who would have celebrated his 100th in June, passed away on Friday, April 9.

The Duke had been self-isolating with the Queen as part of a 'HMS bubble' in Windsor Castle where the Royal's received their Covid-19 vaccine.

Prince Philip had officially retired from his royal duties in May 2017 when he reached the age of 96. Since 1952, Prince Philip has completed 22,219 royal engagements on his own.

After spending the past 12 months in Windsor Castle, we have taken a look back at a selection of pictures of the Duke of Edinburgh over the decades, as he attended various Royal engagements across Berkshire:

File photo dated 21/04/68 of the Royal Family in the gardens at Frogmore, Windsor. Picture: PA

File photo dated 21/04/68 of the Royal Family in the gardens at Frogmore, Windsor. Picture: PA

Queen Elizabeth, the Prince of Wales, the Earl of Wessex, the Duke of York and the Princess Royal listening to the Duke of Edinburgh on a bridge in the grounds of Frogmore, Windsor, on 21/04/68. Picture: PA

Queen Elizabeth, the Prince of Wales, the Earl of Wessex, the Duke of York and the Princess Royal listening to the Duke of Edinburgh on a bridge in the grounds of Frogmore, Windsor, on 21/04/68. Picture: PA

File photo dated 18/05/19 of the Duke of Edinburgh and the Duke of Sussex as they leave after the wedding of Lady Gabriella Windsor and Thomas Kingston at St George's Chapel in Windsor Castle. James and Philip have become the new favourite names at the

Duke of Edinburgh and the Duke of Sussex as they leave after the wedding of Lady Gabriella Windsor and Thomas Kingston at St George's Chapel in Windsor Castle. Picture: PA

File photo dated 01/06/20 of Queen Elizabeth II and the Duke of Edinburgh in the quadrangle of Windsor Castle. The Queen is set to enter the milestone 70th year of her reign, as she prepares to mark the anniversary of her accession away from Sandringham

Queen Elizabeth II and the Duke of Edinburgh in the quadrangle of Windsor Castle. Picture: PA

The Duke of Edinburgh speaking to a bugler at Windsor Castle during a ceremony for the transfer of the Colonel-in-Chief of the Rifles from the Duke to the Duchess of Cornwall.

The Duke of Edinburgh speaking to a bugler at Windsor Castle during a ceremony for the transfer of the Colonel-in-Chief of the Rifles from the Duke to the Duchess of Cornwall. Picture: PA

File photo dated 2/9/2017 of the Duke of Edinburgh and Queen Elizabeth II. A 20-foot Christmas tree has been installed in Windsor Castle where the royal couple are spending the festive period together.

Duke of Edinburgh and Queen Elizabeth II. A 20-foot Christmas tree has been installed in Windsor Castle where the royal couple are spending the festive period together. PA

File photo dated 17/06/15 of Queen Elizabeth ll and Duke of Edinburgh with Lord Samuel Vestey (right) arriving on day two of the 2015 Royal Ascot Meeting at Ascot Racecourse, Berkshire. The Queen's friend and former Master of the Horse Lord Vestey has

Queen Elizabeth ll and Duke of Edinburgh with Lord Samuel Vestey (right) arriving on day two of the 2015 Royal Ascot Meeting at Ascot Racecourse, Berkshire. PA