Henry III leading Poland is probably the most insulting choice possible (of its actual crowned/sworn leaders)
Agree with Charlemagne. He was leader of Franks,
precursor state of France and Germany, not
leader of France and Germany. Although now that I think of it, it is not that implausible for Firaxis to make him such leader seeing their courage to put unconventional civs and leaders in. Personally I'd like him come with his own civ, "Carolingians" (because Franks and Goly Roman Empire are very awkward names in civ context, next to France and Rome), but many people would probably think this is abomination as well.
Anyway, a couple more ideas.
- Introducing Manchu civilization whose leader, conqueror of China, is also added as alternate leader of China (Qing or Jin)
- Kubilai Khan as alternate ruler of both Mongolia and China
- If Indonesia and Malaysia ever sinultaneously get in, they could have some overlap
- If India finally has split civilization, such as Mughals, Delhi, Chola or Bengal, its ruler could also be alternate for India
- Kievan Rus introduced as representation for Belarus and Ukraine, with ruler who is also alternate ruler of Russia
- Normans under William the Conqueror who is also alternate ruler for England
- Constantine for both Rome and Byzantium
What do you think?
Also, in the end one crazy idea
-
Alternate leader for Arabia and... Egypt! To represent Islamic Egypt (my eternal problem). Actually, Saladin could work for this, as primary leader of Arabia and secondary of Egypt. When leading Arabia he'd just have capital in Cairo. When leading Egypt he'd also change their city name list, mixed themes of both civs and renamed Egyptian civ ability (its mechanical focus would work anyway).
Even crazier idea: Sphinx and Chariot would be actually buildable as Egypt under Saladin, but with the condition "unless you found religion" - when you do that, your uniques switch to Mamluk and Medresa. You cannot build pagan idols Sphinxes anymore but they remain in your territory, providing culture and tourism.