There were 51 Free Imperial Cities in the Holy Roman Empire as of 1792. They are listed here with their official confessional status confirmed by the Peace of Westphalia (1648). • Aachen (Catholic) • Aalen (Lutheran) • Augsburg (bi-denominational) • Biberach (bi-denominational) • Bopfingen (Lutheran) • Bremen (Calvinist) • Buchau (Catholic) • Buchhorn (Catholic) • Cologne (Catholic) • Dinkelsbühl (bi-denominational) • Dortmund (Lutheran) • Esslingen am Neckar (Lutheran) • Frankfurt am Main (bi-denominational, mostly Lutheran but the vote for a new emperor was held in the Catholic cathedral of Frankfurt) • Friedberg (Lutheran) • Gengenbach (Catholic) • Giengen (Lutheran) • Goslar (Lutheran) • Hamburg (Lutheran) • Heilbronn (Lutheran) • Isny im Allgäu (Lutheran) • Kaufbeuren (Lutheran) • Kempten (Lutheran) • Leutkirch im Allgäu (Lutheran) • Lindau (Lutheran) • Lübeck (Lutheran) • Memmingen (Lutheran) • Mühlhausen (Lutheran) • Nordhausen (Lutheran) • Nördlingen (Lutheran) • Nuremberg (Lutheran) • Offenburg (Catholic) • Pfullendorf (Catholic) • Ravensburg (bi-denominational) • Regensburg (Lutheran) • Reutlingen (Lutheran) • Rothenburg ob der Tauber (Lutheran) • Rottweil (Catholic) • Schwäbisch Gmünd (Catholic) • Schwäbisch Hall (Lutheran) • Schweinfurt (Lutheran) • Speyer (Lutheran) • Überlingen (Catholic) • Ulm (Lutheran) • Wangen (Catholic) • Weil (Catholic) • Weißenburg in Bayern (Nordgau) (Lutheran) • Wetzlar (Lutheran) • Wimpfen (Lutheran) • Windsheim (Lutheran) • Worms (Lutheran) • Zell am Harmersbach (Catholic) In many of these coats of arms, an eagle reflects the direct association with the Holy Roman Emperor, whose own standard was that of an imperial eagle. Other cities which were once Free Imperial cities, but had ceased to be so by 1792, include:

Confederations