The concept of a tribal duchy in this case is not a true duchy, but instead a gathering of tribes under a chief higher in rank than a regular chief, thus a high chief. The reasoning behind this is that in the English language, the term 'High Chief' is often used to describe a chief above other chiefs. I am dont know other languages - maybe there was regions were pagan tribes created 'Chiefdoms' or 'High chiefdoms'. Even name 'Great land of Kiev' is much better than 'High chiefdom of Kiev'. Add 'Grand' or 'Great' for distinguishing between county and dutchy. Duchies are well known and does not require explanation. Such as Grand principality of Kiev.ДЄlternativly you can refer to to duchy just by name of the land. Therefore title is more apropriate to be named Grand principality. Lithuanian (kunigaikЕЎtystД—) - 'principality' or 'duchy'. In Russian it could be also (Р·РµРјР»СЏ) 'land' or more common (РєРЅСЏР¶РµСЃС‚РІРѕ) - principality. If translated directly form Latvian (my language) it would be simply (zeme) 'land'. They are definelty not High.ДЄs to name of duchy, the selection of chiefdom sounds strange to me, too. That would be more apropriate translation for both english language custom or for translating native names into english directly. I Paradox insists on calling pagan leaders chiefs, then at least make them either Grand Chief or Great Chief. I believe at least if talking about Baltic and Russian pagan rulers there is much more apropriate word. I wonder why pagan Dutchy rules are called High Chiefs and dutches are name High Chiefdoms?

Good crusader names