Summary: When playing with Dark Elves, each time you settle a new city, it will be labelled as 'Guri' on the overland map.

Steps:
1) Start New Game As Dark Elves
2) Found 2 or more cities.

Results: The cities will have a different colored banner, red in this case (see screenshot), and they will all be labelled as Guri in the overland map.

Note 1) If you view the cities in the City Screen, or City List Screen, their actual names will be shown.
Note 2) This issue is gone once you reload a savegame, but each new city founded will again exhibit the issue until you save & reload the game.
Note 3) I haven't tested this with the other factions/races.

Screenshot:

hebergeur d images