Slavic leaders and cities (writing freeciv nation)

[taheto]

Slava!

I'm writing a freeciv nation ruleset, file necessary to enable slavic nation in popular game called "Freeciv" (http://www.freeciv.org). There are already such slavic nations as Poles, Ukrainians, Czechs and others, but you can't play "just" Slavs. So I thought to create ruleset, but I need help.

I need names of old cities (grody, hrady) and first leaders (let's say up to year 936).
Please help.

Here is current, incompleted file:


[nation_slavic]

name=_("Slavic")
plural=_("?plural:Slavs")
groups="Medieval", "European"
legend=_("Slavs are the biggest linguistic and ethnical group in Europe. They are also still living in some asian parts of Russia.")
leader =
"Lech",
"Czech",
"Rus",
"Samon",
"Ljudewit",
"Mojmir I",
"Piast",
"Racibor"

leader_sex = "Male", "Male", "Male", "Male", "Male", "Male", "Male"

flag="slavic"
flag_alt = "-"
city_style = "European"

ruler_titles = { "government", "male_title", "female_title"
"Despotism", _("Duke"), _("Duchess")
"Fundamentalism", _("Patriarch"), _("Patriarch")
"Monarchy", _("King"), _("Queen")
}

init_techs=""
init_buildings=""
init_government="Despotism"
init_units=""
civilwar_nations="czech", "slovak", "polish", "ukrainian", "serbian", "slovenian", "bosnia", "bulgarian", "russian"

cities =
"Arkona", "Lipsk", "Krnski Grad", "Sisak", "Nin", "Biskupin", "Czermno", "Horodoszcze"

[Grom]

Do you still need this information? May I put it in russian or you need it in english?