The Duke of Edinburgh conducted his first official engagements in more than seven months on Wednesday as he held an audience at Windsor Castle.
The 97-year-old Duke retired from public duties in 2017, and has conducted very few engagements since.
However, on Wednesday, Prince Philip received Brigadier Andrew Freeman in audience at Windsor Castle.
Brigadier Freeman is the Commander 17th Combat Service Support Brigade in the Australian Army and was received by the Duke of Edinburgh whilst on a visit to the UK.
Prince Philip is Colonel-in-Chief of the Royal Australian Electrical and Mechanical Engineers.
The Duke’s last engagement listed in the Court Circular was March 9 when he held another short audience at Buckingham Palace.
The Duke of Edinburgh retired from public duties in August 2017, and now only makes appearances at a few special events.
Since 1952, Prince Philip has conducted over 22,000 solo engagements but has scaled back due to his advancing age.
The 97-year-old is still very active, and was spotted carriage riding only a few weeks ago despite having a hip replacement in April.
He attended the wedding of the Duke and Duchess of Sussex in May, but it is currently unknown whether he will be present at the wedding of Princess Eugenie and Jack Brooksbank.
Sources say that Philip will decide on the morning of the occasion whether he will attend.
He and The Queen are currently staying at Windsor Castle ahead of the wedding.