Thank you for this interesting question.
Darren Cook, 14/02/19 14:13:
The idea of adding lots of new property children, descended from P169, for each possible combination of the Japanese and English name for the title, feels very wrong.
What about the opposite? We could have a super-property, à la "key person" (term used in some infoboxes), and add a qualifier for each of the areas or roles they have responsibility for.
For instance, in Italy the law defines a rather clear role of "legal representative", held normally by the "president". Entities can arrange it differently, but there's only one way to describe it: a person is, or is not. If you use such a legal concept for each country, there can be dozens or hundreds of them, but not an unlimited amount.
Federico