The Duke of Sussex asked to be addressed simply as Harry as he took centre stage for his first UK engagement since his move to Canada.
Harry is attending a conference about sustainable travel in Edinburgh today, after arriving on a flight from north America yesterday.
His first engagement back focuses on his sustainable tourism project, Travalyst.
In a conference at the Edinburgh International Conference Centre on Wednesday Harry and his Travalyst team will look to gain feedback from the travel industry on new ideas for sustainability.
He was introduced the duke to the stage as Harry after requesting just his first name to be used.
Addressing the audience, he said: “We want to hear truths and perspectives from across the industry. We don’t need to reinvent the wheel, a lot of great work has already been done.
“But our research again shows that many of these endeavours have failed to reach the conscientiousness of consumers.”
It marks one of his final engagements while still a senior member of the royal family before retiring at the end of March.
Harry and Meghan, the Duke and Duchess of Sussex, announced in January that they would step down from their duties as senior royals to spend more time in North America.
They also said they would aim to become financially independent. The pair will formally step down from their roles as working members of the royal family at the end of March.
They have been in Canada with their son Archie for several weeks.