Queen Elizabeth II and Prince Philip at Caernarfon Castle in Wales

The video describes the visit of Her Majesty the Queen and the Duke of Edinburgh to Carnarvon Castle. They arrive through the Watergate, where the royal standard is displayed. The Queen meets various community leaders who serve in different sectors. The courtyard is adorned with coats of arms of British sovereigns and the heraldic devices of the 15 tribes of Gwyneth, highlighting the cultural significance of Carnarvon as the capital.

What was hung in the courtyard of Carnarvon Castle?

Which tribes are mentioned in relation to Carnarvon?