Fürst in the context of "Hans Ulrich von Eggenberg"

Otto Eduard Leopold, Prince of Bismarck, Count of Bismarck-Schönhausen, Duke of Lauenburg (/ˈbɪzmɑːrk/; born Otto Eduard Leopold von Bismarck-Schönhausen; 1 April 1815 – 30 July 1898) was a German statesman and diplomat who oversaw the unification of Germany and served as its first chancellor from 1871 to 1890. Bismarck's Realpolitik and firm governance resulted in his being popularly known as the Iron Chancellor (Eiserner Kanzler).

From Junker landowner origins, Bismarck rose rapidly in Prussian politics under King Wilhelm I of Prussia. He served as the Prussian ambassador to Russia and France and in both houses of the Prussian parliament. From 1862 to 1890, he held office as the minister president and foreign minister of Prussia. Under Bismarck's leadership, Prussia provoked three short, decisive wars against Denmark, Austria, and France. After Austria's defeat in 1866, he replaced the German Confederation with the North German Confederation, which aligned the smaller North German states with Prussia while excluding Austria. In 1870, Bismarck secured France's defeat with support from the independent South German states before overseeing the creation of a unified German Empire under Prussian rule. Following Germany's unification, he was given the aristocratic title Prince of Bismarck (Fürst von Bismarck). From 1871 onwards, his balance-of-power approach to diplomacy helped maintain Germany's position in a peaceful Europe. While averse to maritime colonialism, Bismarck acquiesced to elite and popular opinion by acquiring colonies.

Prince of the Holy Roman Empire (Latin: princeps imperii, German: Reichsfürst, cf. Fürst) was a title attributed to a hereditary ruler, nobleman or prelate recognised by the Holy Roman Emperor.

The House of Castell is a German noble family of mediatised counts of the old Holy Roman Empire. In 1901, the heads of the two family branches, Castell-Castell and Castell-Rüdenhausen, were each granted the hereditary title of Prince by Luitpold, Prince Regent of Bavaria.

The Princely House of Thurn and Taxis (German: Fürstenhaus Thurn und Taxis, [ˈtuːɐ̯n ʔʊnt ˈtaksɪs]) is a family of German nobility that is part of the Briefadel. It was a key player in the postal services in Europe during the 16th century, until the end of the Holy Roman Empire in 1806, and became well known as the owner of breweries and commissioner of several castles. The family has resided in Regensburg since 1748 with their seat at St. Emmeram Castle from 1803. The family is one of the wealthiest in Germany, and the current head of the House is Albert, 12th Prince of Thurn and Taxis.

They are one of the mediatised Houses for their former Sovereign Imperial counties, later mediatised to Kingdom of Württemberg (Buchau Princely Abbey, now Bad Buchau), Kingdom of Bavaria and Hohenzollern-Sigmaringen.

Reuss (German: Reuß [ˈʁɔʏs] ) was the name of several historical states located in present-day Thuringia, Germany. Several lordships of the Holy Roman Empire which arose after 1300 and became Imperial Counties from 1673 and Imperial Principalities in the late 18th century were ruled by the House of Reuss.

A varying number of these counties came into being by partition; they were partially merged and divided again. After the end of the empire in 1806, the principality of the elder line, as well as several of the younger, became sovereign member states of the German Confederation, with the younger ones merging into a unified principality by 1848. The two remaining territories became federal principalities of the German Empire in 1871, the Principality of Reuss Elder Line with the state capital of Greiz and the Principality of Reuss Younger Line with the state capital of Gera. Both states were ruled by the House of Reuss until the German Revolution of 1918–1919. The head of each branch bore the German title Fürst (Prince, as head of a princely house) while their children and all other members of the house bore the title Prinz/Prinzessin (Prince/Princess, as agnate members of a princely house).

The Principality of Reuss-Gera (German: Fürstentum Reuß-Gera), officially called the Principality of Reuss Junior Line (German: Fürstentum Reuß jüngerer Linie) after 1848, was a sovereign state in modern Germany, ruled by members of the House of Reuss. It was one of the successor states of the Imperial County of Reuss. The Counts Reuss, with their respective capitals and Residenzen at Gera, Schleiz, Lobenstein, Köstritz and Ebersdorf, were all elevated to the title of prince (Fürst) in 1806. Their successor branch heads shared that title, while their cadets were also each titled prince (Prinz). Thus all males of the family were properly "Prince Heinrich (Roman numeral) Reuss, J.L.", without use of a nobiliary particle, although for convenience their branch names remained in colloquial use (for example, "Prince Heinrich I Reuss of Köstritz").

Prince of Bismarck (German: Fürst von Bismarck) is a title of the German nobility. The German word Fürst historically denotes a sovereign ruler, and is a higher title than Prinz; however both titles are conventionally rendered as Prince in English. The Prince of Bismarck holds the style of Serene Highness.

The title was created in 1871 for the statesman Otto von Bismarck (1815–1898), who received several noble titles during the course of his career. Born into a noble Junker family (the House of Bismarck), he began life as simply "Mister (German: Herr) Otto Eduard Leopold von Bismarck".