It was referred to as the Kingdom of Isles and Rivers and included the Riverlands and the Iron Islands (where House Hoare originated). Before that, the Blackwoods and Brackens were Kings in that area. The Tullys along with the Tyrells are the only Great Houses who were never Kings prior to Aegon's Conquest. 17.
The initial plan had been for each episode of Game of Thrones to open with a raven flying around a stylised map of Westeros. That was rejected as too cute, too contrived and too confusing. Instead Going by your map the Riverland kings were the superpower of ancient Westeros, when in fact this has been the most fractured and least united region for most of Westerosi history. The Starks were the first House to unite any of the Seven Kingdoms, and they did this thousands of years before any other region managed to emulate their feat. Game of Thrones' title sequence was given its own design bible of regulations in much the same way that a full-blown TV show would be. The intro would always last 90 seconds, so as to not mess CwDYfqD. 758 940 725 610 814 179 554 106

game of thrones kingdoms map