The Three Giants and the Four Great Powers
Even though there are seven world powers, when someone said the Three Giants, they referred only to Pandemonium, the World Government and the Republic.
Even to the rest of the world, the people were more inclined to be the citizens of these three great powers.
Because to them, these three great powers have stability and deep foundation that separated them from the other crowned kings
That is what they called the other four great powers. The other four great powers were crowned by Death Monarch.
The Crowned Kings
The continent was given to them. OF course the reality couldn't have been more different.
Death Monarch in the first place have never conquered those continents.
But his act of crowning the other four great powers, redistributing the continent of the world and separating and dividing borders and lines of the world had given the world the false impression that he was the one that gave the land to the great power.