Prince Harry is returning to the UK next month for the first time since his rushed visit to see the King after his cancer diagnosis.
The Duke of Sussex will attend a ceremony on 8 May marking the 10th anniversary of the Invictus Games.
The service of thanksgiving at St Paul’s Cathedral is the first major event he has attended in Britain for some time.
Please use Chrome browser for a more accessible video player
It is not known if any other royals will be in attendance at the service, or if the Duchess of Sussex or the couple’s children will be in the UK.
Harry made a brief trip to the UK in February, spending about 45 minutes with his father, who had just started treatment for cancer.
Read more:
Prince Harry officially declares US his new home
King Charles to return to public-facing duties
Keep up with all the latest news from the UK and around the world by following Sky News
The duke is expected to provide a reading at the event, which marks a decade since the inaugural Invictus Games in London in 2014.
The games were founded as a sporting event for injured and sick military personnel and veterans.
Be the first to get Breaking News
Install the Sky News app for free
Actor Damian Lewis is set to recite the Invictus poem during the service.
Representatives from across the Invictus Games participating nations, including members of the wounded, injured and sick service personnel and veteran community, will also be in attendance.