Rulers of the Kingdom of Hawaii

I am not accepting regnal names because most of the monarchs and regents hold the same title, it's supposed to be a challenge for even those who know Hawaiian history. By typing in Kamehameha I, II, III, and so forth or Ka'ahumanu I, II, III... you'd already have typed in the names of the majority of them. Monarchs also still used their personal names up until their death. I will take your suggestion into consideration but I'm still conflicted on making any immediate changes.

For which names specifically?

I did put a warning that titular names would not be accepted but I am considering changing it because it seems to be too much of a challenge for most people, however as for the name "Liliuokalani" I see no point in accepting the spelling "Lilioukalani", that is in no way a variation of her name or a simple misspelling, The name "Liliu" is accepted if you can't spell her full name because it was one of her birth names along with her other names "Kamakaeha", "Loloku", and "Walania", or you could memorize her English name, Lydia. Sorry but I'm not willing to accommodate for people who are not competent in basic Hawaiian lexicon or spelling.