UK: Prince Charles and Camilla Duchess of Cornwall attend The Highland Games Braemar Gathering in Scotland

The video covers a ceremonial event at the Princess Royal and Duke of Rossi Park, where His Royal Highness Prince Charles is welcomed. He is set to cut a Heather rope, marking the opening of a new archway. The event includes greetings from officials like Peter Fraser, the president, and the vice president of the Braemar Royal Highland Society.

What is being marked by the cutting of the Heather rope?

What is the name of the society mentioned in the text?