Can you name all of the people who have sat the Iron Throne as the ruler of Westeros?
WARNING: PROBABLE SPOILERS FOR FUTURE SEASONS OF HOUSE OF THE DRAGON.
According to: https://awoiaf.westeros.org/index.php/Lord_of_the_Seven_Kingdoms
Literary canon only. TV show canon not included.
The individual needs to have actually sat the Iron Throne as ruler of Westeros. No claimants or unsuccessful rebels included.