Several costumed stars take a break on St Michaels Mount film set. Spotted actors include Paddy Considine as Viserys Targaryen, Emma D`arcy as Rhaenyra Targaryen. Matt Smith in blond wig as Prince Daemon Targaryen. House of Dragon based on the novels of George Martin - Fire and blood. This prequel starts 300 years prior to the Game of Thrones stories and charts the decline of the Targaryen dynasty some 193 years later. The iconic St Michaels mount setting is the current (ancestral) home of the Lord St Levan and family and a small community lives on the island. The National trust now administers most of the island and it is a much loved tourist attraction reached by an amphibious tractor at high tide or a causeway by foot at low tide. The mounts Bay location is near Penzance and adjacent to Marazion Cornwall UK