I often play as Germany and build a big empire but tire of building cities called New Berlin, New Leipzig, etc. So, instead of running out of city names, I took a map of Germany and expanded the list to include all large German cities. To incorporate this into your game, open your civ3mod file in the Civ3Edit program, go to Edit Rules, go to the Civilizations tab, locate Germany, and copy-and-paste the following list into the City Names box:
Berlin
Leipzig
Hamburg
Konigsberg
Frankfurt
Munich
Heidelburg
Nuremberg
Cologne
Hannover
Bremen
Stuttgart
Bonn
Salzburg
Dortmund
Brandenburg
Essen
Duisburg
Düsseldorf
Cottbus
Dresden
Potsdam
Chemnitz
Zwickau
Regensburg
Gera
Rostock
Halle
Magdeburg
Jena
Ingolstadt
Schwerin
Nürnberg
Erlangen
Erfurt
Augsburg
Lübeck
Brunswick
Salzgitter
Kiel
Göttingen
Ulm
Kassel
Heilbronn
Offenbach
Paderborn
Bielefeld
Ludwigshafen
Mainz
Wiesbaden
Münster
Freiburg
Koblenz
Saarbrücken
Aachen
Berlin
Leipzig
Hamburg
Konigsberg
Frankfurt
Munich
Heidelburg
Nuremberg
Cologne
Hannover
Bremen
Stuttgart
Bonn
Salzburg
Dortmund
Brandenburg
Essen
Duisburg
Düsseldorf
Cottbus
Dresden
Potsdam
Chemnitz
Zwickau
Regensburg
Gera
Rostock
Halle
Magdeburg
Jena
Ingolstadt
Schwerin
Nürnberg
Erlangen
Erfurt
Augsburg
Lübeck
Brunswick
Salzgitter
Kiel
Göttingen
Ulm
Kassel
Heilbronn
Offenbach
Paderborn
Bielefeld
Ludwigshafen
Mainz
Wiesbaden
Münster
Freiburg
Koblenz
Saarbrücken
Aachen