Development Though principalities existed in antiquity, even before the height of the
Roman Empire, the principality as it is known today developed in the
Middle Ages between 750 and 1450 when
feudalism was the primary
economic and social system in much of Europe. Feudalism increased the power of local princes within a king's lands. As princes continued to gain more power over time, the king's authority was diminished in many places. This led to political fragmentation as the king's lands were broken into mini-states ruled by princes and dukes who wielded absolute power over their small territories. This was especially prevalent in
Europe, and particularly with the
Princes of the Holy Roman Empire. During the
Late Middle Ages from 1200 to 1500, principalities were often at war with each other as royal houses asserted sovereignty over smaller principalities. These wars caused a great deal of instability, and economies were destroyed. Episodes of
bubonic plague also reduced the power of principalities to survive independently. Eventually, agricultural progress and new trade goods and services developed commerce between principalities. Many of these states became wealthy, expanded their territories, and improved the services provided to their citizens. Princes and dukes developed their lands, established new ports, and chartered large, thriving cities. Some used their newfound wealth to build palaces and other institutions now associated with sovereign states.
Consolidation , last prince of
Liechtenstein prior to the end of the
Holy Roman Empire While some principalities prospered in their independence, stronger royal houses swallowed less successful states. Europe saw the consolidation of small principalities into larger
kingdoms and
empires. This had already happened in
England in the first millennium, and this trend subsequently led to the creation of such states as
France,
Portugal, and
Spain. Another form of consolidation was orchestrated in
Italy during the Renaissance by the
Medici family. A banking family from
Florence, the Medici took control of governments in various
Italian regions and even assumed the
papacy. They then appointed family members as princes and assured their protection.
Prussia also later expanded by acquiring the territories of many other states. However, from the 17th to 19th centuries, especially within the Holy Roman Empire, the reverse was also occurring: many new small sovereign states arose as a result of land transfers for various reasons. Notable principalities existed in various regions of
Germany and
Italy until the early 20th century.
Nationalism Nationalism, the belief that the nation-state is the best vehicle to realise the aspirations of a people, became popular in the late 19th century. A characteristic of nationalism is an identity with a larger region, such as an area sharing a common language and culture. With this development, principalities fell out of favour. As a compromise, many principalities united with neighbouring regions. They adopted constitutional forms of government, with the monarch acting as a mere figurehead while administration was left in the hands of elected parliaments. The trend in the 19th and 20th centuries was the abolition of various forms of monarchy and the creation of republican governments led by popularly elected presidents.
Ecclesiastical principalities Several principalities where genealogical inheritance is replaced by succession in a religious office have existed in the
Roman Catholic Church, in each case consisting of a feudal polity (often a former secular principality in the broad sense) held
ex officio—the closest possible equivalent to hereditary succession—by a prince of the church, styled more precisely according to his ecclesiastical rank, such as
prince-bishop,
prince-abbot or, especially as a form of crusader state,
grand master. Some of these instances were religious offices without sovereign power over any territory. In contrast, others, such as
Salzburg and
Durham, shared some of the characteristics of secular princes. ==Asia==