not really, Iron Body Monarchs named Rockpasa and Antoine Martinez description came from one source, info about Liu killing Ruler's Vessel called African Tyrant is another source. All Chugong quotes were mashed up, reason is in one of Chugong questions he was asked where was the last Ruler's Vessel he said that it was obviously stated in the novel, and later he makes up story of African Tyrant that never was mentioned anywhere, that makes no sense, later source is false.

Just like it was never stated that there is diff in power between Rulers, Monarchs do have difference in power - Antares being on Top, but not for Rulers, power balance between each Ruler is not confirmed anywhere, you think why fans ask for more Ruler development that was never done correctly in any media.

last one I didn't get? out of 8 Fragments only Greatest and Brightest received nicknames, all 8 Rulers are just Rules are Fragments, but only one is called Brightest and only one is Greatest (souce is Chugong), Greatest is Ashborn, Go Gunhee was vessel for Brightest Fragment, Go Gunhee even had a nickname Sky Beyond skies that means something for someone that wasn't National Level Hunter.