Free imperial city in the context of "Imperial State"

The German Empire (German: Deutsches Reich), also referred to as Imperial Germany, the Second Reich, or simply Germany, was the period of the German Reich from the unification of Germany in 1871 until the November Revolution in 1918, when Germany changed its form of government to a republic. The German Empire consisted of 25 states, each with its own nobility: four constituent kingdoms, six grand duchies, five duchies (six before 1876), seven principalities, three free Hanseatic cities, and one imperial territory. While Prussia was only one of the four kingdoms in the realm, it contained about two-thirds of the Empire's population and territory, and Prussian dominance was also constitutionally established, since the King of Prussia was also the German Emperor (Deutscher Kaiser).

The empire was founded on 18 January 1871, when the south German states, except for Austria, Switzerland and Liechtenstein, joined the North German Confederation. The new constitution came into force on 16 April, changing the name of the federal state to the German Empire and introducing the title of German Emperor for Wilhelm I, King of Prussia from the House of Hohenzollern. Berlin remained its capital, and Otto von Bismarck, Minister President of Prussia, became chancellor, the head of government. After 1850, the states of Germany had rapidly become industrialized. In 1871, Germany had a population of 41 million people; by 1913, this had increased to 68 million. A heavily rural collection of states in 1815, the now united Germany became predominantly urban. German factories were often larger and more modern than many of their British and French counterparts, but the preindustrial sector was more backward. The success of the German Empire in the natural sciences was such that one-third of all Nobel Prizes went to German inventors and researchers. During its 47 years of existence, the German Empire became an industrial, technological, and scientific power in Europe, and by 1913, Germany was the largest economy in continental Europe and the third largest in the world. Germany also became a great power, building the longest railway network of Europe, the world's strongest army, and a fast-growing industrial base. Starting very small in 1871, in a decade, the navy became second only to Britain's Royal Navy.

Medieval communes in the European Middle Ages had sworn allegiances of mutual defense (both physical defense and of traditional freedoms) among the citizens of a town or city. These took many forms and varied widely in organization and makeup.

Communes are first recorded in the late 11th and early 12th centuries, thereafter becoming a widespread phenomenon. They had greater development in central-northern Italy, where they became city-states based on partial democracy. At the same time in Germany they became free cities, independent from local nobility.

An Imperial Estate (Latin: Status Imperii; German: Reichsstand, plural: Reichsstände) was an entity or an individual of the Holy Roman Empire with representation and the right to vote in the Imperial Diet (Reichstag). Rulers of these Estates were able to exercise significant rights and privileges and were "immediate", meaning the only authority above them was that of the Holy Roman Emperor. They were thus able to rule their territories with a considerable degree of autonomy.

The system of imperial states replaced the more regular division of Germany into stem duchies in the early medieval period. The old Carolingian stem duchies were retained as the major divisions of Germany under the Salian dynasty, but they became increasingly obsolete during the early high medieval period under the Hohenstaufen, and they were finally abolished in 1180 by Frederick Barbarossa in favour of more numerous territorial divisions. From 1489, the Imperial Estates represented in the Diet were divided into three chambers, the college of prince-electors (Kurfürstenkollegium/den Kurfürstenrat), the college of imperial princes (Reichsfürstenrat) and the college of imperial cities. Counts and nobles were not directly represented in the Diet in spite of their immediate status, but were grouped into "benches" (Grafenbänke) with a single vote each.Imperial Knights and imperial villages had immediate status but were not represented in the Diet.

Ravensburg (German pronunciation: [ˈʁaːvn̩sˌbʊʁk] or [ˈʁaːfn̩sˌbʊʁk]; Swabian: Raveschburg) is a city in Upper Swabia in Southern Germany, capital of the district of Ravensburg, Baden-Württemberg.

Ravensburg was first mentioned in 1088. In the Middle Ages, it was a Free Imperial City and an important trading centre. The "Great Ravensburg Trading Society" (Große Ravensburger Handelsgesellschaft) owned shops and trading companies all over Europe.

The burgher class was a social class consisting of municipal residents (Latin: cives), that is, free persons subject to municipal law, formed in the Middle Ages. These free persons were subject to city law, medieval town privileges, a municipal charter, or German town law. After the fall of the estate monarchy, this social class, more often referred to as the bourgeoisie (from French: bourgeoisie – city residents) and less often as the burgher class, generally refers to town or city inhabitants. Due to the ideological and pejorative connotations of the terms 'burgher class' and 'bourgeoisie,' modern sociology prefers to use the term 'middle class.'

Gradually, within the burgher class, a wealthy stratum emerged, engaged in banking and overseas trade, organized in guilds and trading companies. The rise of this stratum is associated with the beginning of capitalism.

A city charter or town charter (generically, municipal charter) is a legal document (charter) establishing a municipality such as a city or town. The concept developed in Europe during the Middle Ages.

Traditionally, the granting of a charter gave a settlement and its inhabitants the right to town privileges under the feudal system. Townspeople who lived in chartered towns were burghers, as opposed to serfs who lived in villages. Towns were often "free", in the sense that they were directly protected by the king or emperor, and were not part of a feudal fief.

Gentry (from Old French genterie, from gentil 'high-born, noble') are "well-born, genteel and well-bred people" of high social class, especially in the past. Gentry, in its widest connotation, refers to people of good social position connected to landed estates (see manorialism), upper levels of the clergy, or long established "gentle" families of noble descent, some of whom in some cases never obtained the official right to bear a coat of arms. The gentry largely consisted of landowners who could support themselves entirely from rental income or at least had a country estate; some were gentleman farmers.

In the United Kingdom gentry specifically refers to the landed gentry: the majority of the land-owning social class who typically had a coat of arms but did not hold a peerage. The adjective "patrician" ("of or like a person of high social rank") describes comparable elite groups in other analogous traditional social elite strata based in cities, such as the free cities of Italy (Venice and Genoa) and the free imperial cities of Germany, Switzerland and the Hanseatic League. The term "gentry" by itself, the historian Peter Coss argues, is a broad construct applied by scholars to different societies, sometimes in ways that do not fully align with historical realities. Whilst no single model perfectly fits every society, some scholars favour a unified term to describe these upper social strata.