Karl XII av Sverige name was Karl, not Charles!
So why show his name as "Charles XII of Sweden", when it only should be in the English name field if even that?
With the same unlogically method, I guess it just about any time soon before Carl XVI Gustaf of Sweden becomes a Charles too...
https://en.wikipedia.org/wiki/Carl_XVI_Gustaf_of_Sweden
I see that there is sort of a tradition in translating the names of kings and queens to other languages, but I also see that in the case of this particular profile, the full name is written in Swedish, and also in English, which helps a big deal in order to understand the name of this particular king for those of us who don't speak Swedish.
The "problem" is solved first when "Charles XII of Sweden" is not a part of the
---com/people/Charles-XII-of-Sweden/6000000001368483175
and the profiles instead shows up as:
--- com/people/Karl-XII-av-Sverige/6000000001368483175
and the part "Charles-XII-of-Sweden" is only shown in the English language field.