https://onepiece.fandom.com/wiki/Kaido
The wiki page is written very good, no YoNKuOU bullshit.
Titles - translatable = Warlord,Emperor... etc. The OP fandom don't call the Admirals and other Marine ranks by their Japanese equivalent.
There was a debate of what a "YoNkoU" should be and have/possess but many people were so blind in the community and couldn't see infront of their noses. ------>
https://en.wikipedia.org/wiki/Emperor <------
Names - not translatable = James,John,Hans,Pedro / Tokyo,Berlin,Vienna,New York. Tokyo means "East Capital" you don't call the city like this, do you?
And 1 other thing that people forget, will power = haki. The stronger the WILL the stronger the person.