While we're on the topic, it was recently pointed out to me that we do not use the word "king" in article titles. I actually have two questions about this.
1) Why? or rather, why not? While a neither agree nor disagree, I would like to know the reasoning behind it. And...
I don't know about old discussions. However, I think it is reasonable because "king" is a title, profession, or similar.
It often changes. A ruler can have several titles at the same time.
(And it is not usual in encyclopedias and lexica.)
Articles are not called "President Bush" or "Doctor Einstein". Etc. etc.
And -- see below -- these titles differ between languages: Roi Louis IV, King Richard II, Ali`i ...
(If the title were used it had to be in the corresponding language, I think.)
2) What about lesser distinctions, such as chief, chiefess, or in the case of the articles I am currently working on, ali`i (chief or high chief), ali`i aimoku (highest chief of an island), and mo`i (rulers of maui)? In many cases I've come across several different significant people who share the same name, and the only distinction would be title, or the island they are associated with.
The most natural would be: disambiguation by island.