PRINCE OF PRUSSIA
HOLY ROMAN EMPIRE
ACCORDING TO QUORA…
THE KINGDOM OF PRUSSIA
Prussia is the go-to name when thinking of powerful German states. They had heavy influence over the north German land they didn't own, and had a large and well disciplined army. While in the HRE, they annexed vast lands in north Germany and fought Napoleon alongside others. After the HRE, Prussia would eventually form Germany after beating Austria in the 7 weeks war and France in the Franco-Prussian war, so I believe they were the most powerful Holy Roman state.
William I, German Emperor
William I, or in German Wilhelm I (full name: William Frederick Louis of Hohenzollern, German: Wilhelm Friedrich Ludwig von Hohenzollern, 22 March 1797 – 9 March 1888), of the House of Hohenzollern was King of Prussia from 2 January 1861 and the first German Emperor from 1 January 1871 to his death, the first Head of State of a united Germany. Under the leadership of William and his Minister President Otto von Bismarck, Prussiaachieved the unification of Germany and the establishment of the German Empire. Despite his long support of Otto von Bismarck as Minister President, William held strong reservations about some of Bismarck's more reactionary policies, including his anti-Catholicism and tough handling of subordinates. Contrary to the domineering Bismarck, William was described as polite, gentlemanly and, while a staunch conservative, more open to certain classical liberal ideas than his grandson Wilhelm II.
Wilhelm II, German Emperor
Wilhelm II or William II (German: Friedrich Wilhelm Viktor Albert von Preußen, English: Frederick William Victor Albert of Prussia; 27 January 1859 – 4 June 1941) was the last German Emperor (Kaiser) and King of Prussia, ruling the German Empire and the Kingdom of Prussia from 15 June 1888 to 9 November 1918. He was the eldest grandchild of the British Queen Victoria and related to many monarchs and princes of Europe.
Acceding to the throne in 1888, he dismissed the Chancellor, Otto von Bismarck, in 1890 and launched Germany on a bellicose "New Course" in foreign affairs that culminated in his support for Austria-Hungary in the crisis of July 1914 that led in a matter of days to the First World War. Bombastic and impetuous, he sometimes made tactless pronouncements on sensitive topics without consulting his ministers, culminating in a disastrous Daily Telegraph interview in 1908 that cost him most of his influence. His leading generals, Paul von Hindenburg and Erich Ludendorff, dictated policy during the First World War with little regard for the civilian government. An ineffective war-time leader, he lost the support of the army, abdicated in November 1918, and fled to exile in the Netherlands.
Frederick William III of Prussia
Frederick William III (German: Friedrich Wilhelm III) (3 August 1770 – 7 June 1840) was king of Prussia from 1797 to 1840. He ruled Prussia during the difficult times of the Napoleonic Wars and the end of the Holy Roman Empire. Steering a careful course between France and her enemies, after a major military defeat in 1806, he eventually and reluctantly joined the coalition against Napoleon in the Befreiungskriege. Following Napoleon's defeat he was King of Prussia during the Congress of Vienna which assembled to settle the political questions arising from the new, post-Napoleonic order in Europe. He was determined to unify the Protestant churches, to homogenize their liturgy, their organization and even their architecture. The long-term goal was to have fully centralized royal control of all the Protestant churches in the Prussian Union of churches.
Prince Charles of Prussia
Prince Frederick Charles Alexander of Prussia (German: Prinz Friedrich Carl Alexander von Preußen) (29 June 1801 – 21 January 1883) was a younger son of Frederick William III of Prussia. He served as a Prussian general for much of his adult life and became the first Herrenmeister (Grand Master) of the Order of Saint John after its restoration as a chivalric order.Nevertheless, he is perhaps remembered more often for his patronage of art and for his sizable collections of art and armor.
Frederick William IV of Prussia
Frederick William IV (German: Friedrich Wilhelm IV.; 15 October 1795– 2 January 1861), the eldest son and successor of Frederick William III of Prussia, reigned as King of Prussia from 1840 to 1861. Also referred to as the "romanticist on the throne", he is best remembered for the many buildings he had constructed in Berlin and Potsdam, as well as for the completion of the Gothic Cologne Cathedral. In politics, he was a conservative, and in 1849 rejected the title of Emperor of the Germans offered by the Frankfurt Parliament as not the Parliament's to give. In 1857, he suffered a stroke and was left incapacitated until his death.
Georg Friedrich, Prince of Prussia
Georg Friedrich Ferdinand, Prince of Prussia (German: Georg Friedrich Ferdinand Prinz von Preußen;born 10 June 1976), is the current head of the House of Hohenzollern, the former ruling dynasty of the German Empire and of the Kingdom of Prussia. He is the great-great-grandson and historic heir of Wilhelm II, the last German Emperor and King of Prussia, who was deposed and went into exile upon Germany's defeat in World War I in 1918.
House of Hohenzollern
The House of Hohenzollern [ˈhoːənˈʦɔlɐn] is a dynasty of former princes, electors, kings and emperors of Hohenzollern, Brandenburg, Prussia, the German Empire, and Romania. The family arose in the area around the town of Hechingen in Swabia during the 11th century and took their name from Hohenzollern Castle. The first ancestor of the Hohenzollerns was mentioned in 1061. They may have derived from the Burchardinger dynasty.
The Hohenzollern family split into two branches, the Catholic Swabian branch and the Protestant Franconian branch, which later became the Brandenburg-Prussian branch. The Swabian branch ruled the principalities of Hohenzollern-Hechingen and Hohenzollern-Sigmaringen until 1849, and also ruled Romania from 1866 to 1947. Members of the Franconian branch became Margrave of Brandenburg in 1415 and Duke of Prussia in 1525.
The Margraviate of Brandenburg and the Duchy of Prussia were ruled in personal unionafter 1618 and were called Brandenburg-Prussia. The Kingdom of Prussia was created in 1701, eventually leading to the unification of Germany and the creation of the German Empire in 1871, with the Hohenzollerns as hereditary German Emperors and Kings of Prussia.
Germany's defeat in World War I in 1918 led to the German Revolution. The Hohenzollerns were overthrown and the Weimar Republic was established, thus bringing an end to the German monarchy. Georg Friedrich, Prince of Prussia is the current head of the royal Prussian line, while Karl Friedrich, Prince of Hohenzollern is the head of the princely Swabian line.
Karl Friedrich, Prince of Hohenzollern
Karl Friedrich, Prince of Hohenzollern (born 20 April 1952; Sigmaringen, Baden-Württemberg, Germany) is the eldest son of the late Friedrich Wilhelm, Prince of Hohenzollern and Princess Margarita of Leiningen. He became head of the Princely House of Hohenzollern upon his father's death on 16 September 2010.