The House of Nassau is a European aristocratic dynasty. The name originated with a lordship associated with Nassau Castle, which is located in what is now Nassau in Rhineland-Palatinate, Germany. With the fall of the Hohenstaufen dynasty in the first half of the 13th century, royal power within Franconia evaporated and the former stem duchy fragmented into separate independent states. Nassau emerged as one of those independent states as part of the Holy Roman Empire. The lords of Nassau were originally titled "Counts of Nassau", subject only to the Emperor, and then elevated to princely rank as "Princely Counts". Early on, the family divided into two main branches – the elder (Walramian) branch, which gave rise to the German king Adolf, and the younger (Ottonian) branch, which gave rise to the Princes of Orange and the monarchs of the Netherlands.
At the end of the Holy Roman Empire and the Napoleonic Wars, the Walramian branch had inherited or acquired all the Nassau ancestral lands and proclaimed themselves, with the permission of the Congress of Vienna, the "Dukes of Nassau", forming the independent state of Nassau (with its capital at Wiesbaden). This territory now mainly lies in the German Federal State of Hesse, and partially in the neighbouring State of Rhineland-Palatinate. The Duchy was annexed by Prussia in 1866 after the Austrian-Prussian War as an ally of Austria. It was subsequently incorporated into the newly created Prussian Province of Hesse-Nassau.
Today, the term Nassau is used in Germany as a name for a geographical, historical and cultural region, but no longer has any political meaning. All Dutch and Luxembourgish monarchs since 1815 have been senior members of the House of Nassau. However, in 1890 in the Netherlands and in 1912 in Luxembourg, the male lines of heirs to the two thrones became extinct, so that since then, they have descended in the female line from the House of Nassau.
According to German tradition, the family name is passed on only in the male line of succession. The House would therefore, from this German perspective, have been extinct since 1985.Grand Duchess Charlotte abdicated in 1964, but she died in 1985Clotilde Countess of Nassau-Merenberg is the last patrilineal descendant of the House of Nassau though she descends from a family considered to be non-dynastic However, both Dutch and Luxembourgish monarchial traditions, constitutional rules and legislation in that matter differ from the German tradition, and thus neither country considers the House extinct. The Grand Duke of Luxembourg uses "Duke of Nassau" as his secondary title and a title of pretense to the dignity of Chief of the House of Nassau (being the most senior member of the eldest branch of the House), but not to lay any territorial claims to the former Duchy of Nassau (which is now part of the Federal Republic of Germany).
Origins The area that came to be the county of Nassau was part of the Duchy of Franconia. When Franconia fragmented in the early 13th century with the fall of the Hohenstaufen dynasty, Nassau emerged as an independent state as part of the Holy Roman Empire.
Count Dudo-Henry of Laurenburg () (; ) is considered the founder of the House of Nassau.Hesselfelt (1965).Van de Venne & Stols (1937). Dudo was a son of Rupert (German: Ruprecht), the Archbishop of Mainz's Vogt in Siegerland.Lück (1981), p. 16–17. Dudo was himself lord or Vogt of Lipporn and Miehlen and owned large parts of the lands of Lipporn/Laurenburg. There are more persons known who, as owners of the lands of Lipporn/Laurenburg (and thus the predecessors of Dudo), probably also were his ancestors. The first is a certain Drutwin mentioned in 881 as a landowner in Prüm, and who is the oldest known possible ancestor of the House of Nassau.
Dudo is mentioned as Tuto de Lurinburg between 1093 and 1117. Dudo built the castle of Laurenburg on the Lahn a few kilometers upriver from Nassau around 1090 as the seat of his lordship.Dek (1970). He is first mentioned in a document in the purported founding-charter of Maria Laach Abbey in 1093 (although many historians consider the document to be fabricated). In 1159, Nassau Castle became the ruling seat, and the house is now named after this castle. In a charter dated 1134 (after his death) he is mentioned as Count of Laurenburg.
In 1117, Dudo donated land to Schaffhausen Abbey for construction of a monastery in Lipporn. Around 1117, Dudo, Count of Laurenburg founded at Lipporn a Benedictine priory dedicated and named for Saint Florin of Koblenz, and dependent on the Benedictine All Saints Abbey in Schaffhausen. About 1126, his son, Rupert I, Count of Laurenburg, the Vogt of Lipporn, established it as a separate and independent abbey.Elisabeth of Schönau: The Complete Works, (Anne L. Clark, trans.) Paulist Press, 2000, p. 287, n.162 The Romanesque buildings were constructed between 1126 and 1145, presumably with a three-nave basilica. The abbey included both a monastery for monks and a small, separate one for nuns.Steele, F.M., "St. Elizabeth von Schönau and her Visions", American Catholic Quarterly Review, (James Andrew Corcoran, Patrick John Ryan, Edmond Francis Prendergast, eds.) Hardy and Mahony., 1911, p. 393
In 1122, Dudo received the castle of Idstein in the Taunus as a fief under the Archbishopric of Mainz. This was part of the inheritance of Count Udalrich of Idstein-Eppstein. He also received the Vogtship of the richly endowed Benedictine Bleidenstadt Abbey (in present-day Taunusstein).Reuling.
The Counts of Laurenburg and Nassau expanded their authority under the brothers Robert (Ruprecht) I (1123–1154) and Arnold I of Laurenburg (1123–1148). Robert was the first person to call himself Count of Nassau, but the title was not confirmed until 1159, five years after Robert's death. Robert's son Walram I (1154–1198) was the first person to be legally titled Count of Nassau.
The chronology of the Counts of Laurenburg is not certain and the link between Robert I and Walram I is especially controversial. Also, some sources consider Gerhard, listed as co-Count of Laurenburg in 1148, to be the son of Robert I's brother, Arnold I.Family tree of the early House of Nassau, retrieved on 2009-01-22. However, Erich Brandenburg in his Die Nachkommen Karls des Großen states that it is most likely that Gerhard was Robert I's son, because Gerard was the name of Beatrix of Limburg's maternal grandfather.Table 11, Page 23 and note on page 151, quoted at Genealogy of the Middle Ages, retrieved on 2009-01-23
Geography
As noted above, the county of Nassau was part of the stem Duchy of Franconia. It branched off northeast from the Rhine River and followed the course of the Lahn and Sieg rivers. Northeast and southeast of it was the lands of the House of Hesse. With the fall of the Hohenstaufen in the first half of the 13th century royal power within Franconia evaporated and the former stem duchy fragmented into separate independent states. Nassau emerged as one of those independent states as part of the Holy Roman Empire.
Nassau, originally a county, but part of the duchy of Franconia, developed on the lower Lahn river in what is known today as Rhineland-Palatinate. The town of Nassau was founded in 915. As noted above, Dudo of Laurenburg held Nassau as a fiefdom as granted by the Bishopric of Worms. His son, Rupert, built the Nassau Castle there around 1125, declaring himself "Count of Nassau". This title was not officially acknowledged by the Bishop of Worms until 1159 under the rule of Rupert's son, Walram. By 1159, the County of Nassau effectively claimed rights of taxation, toll collection, and justice, at which point it can be considered to become a state.
The Nassauers held the territory between the Taunus and the Westerwald at the lower and middle Lahn. By 1128, they acquired the bailiwick of the Bishopric of Worms, which had numerous rights in the area, and thus created a link between their heritage at the lower Lahn and their possessions near Siegen. In the middle of the 12th century, this relationship was strengthened by the acquisition of parts of the Hesse-Thüringen feudal kingdom, namely the Herborner Mark, the Kalenberger Zent and the Court of Heimau (Löhnberg). Closely linked to this was the "Lordship of Westerwald", also in Nassau's possession at the time. At the end of the 12th century, the House acquired the Reichshof Wiesbaden, an important base in the southwest.
In 1255, after the Counts of Nassau acquired the estates of Weilburg, the sons of Count Henry II divided Nassau for the first time. Walram II received the county of Nassau-Weilburg. From 1328 on, his younger brother, Otto I, held the estates north of the Lahn river, namely the County of Nassau-Siegen and Nassau-Dillenburg. The boundary line was essentially the Lahn, with Otto receiving the northern part of the county with the cities of Siegen, Dillenburg, Herborn and Haiger and Walram retaining the section south of the river, including the cities of Weilburg and Idstein.
List of rulers Counts of Laurenburg (ca. 1093–1159) and Nassau (1159–1255) In 1255, Henry II's sons, Walram II and Otto I, split the Nassau possessions. The descendants of Walram became known as the Walram Line, which became important in the Countship of Nassau and Luxembourg. The descendants of Otto became known as the Ottonian Line, which would inherit parts of Nassau, France and the Netherlands. Both lines would often themselves be divided over the next few centuries. In 1783, the heads of various branches of the House of Nassau sealed the Nassau Family Pact (Erbverein) to regulate future succession in their states, and to establish a dynastic hierarchy whereby the Prince of Orange-Nassau-Dietz was recognised as President of the House of Nassau.
The Walramian Line (1255–1985)
The Walramian Line concentrated their efforts primarily on their German lands. The exception was Adolf, King of the Romans ( – 2 July 1298) who was the count of Nassau from about 1276 and the elected king of Germany from 1292 until his deposition by the prince-electors in 1298. He was never crowned by the pope, which would have secured him the imperial title. He was the first physically and mentally healthy ruler of the Holy Roman Empire ever to be deposed without a papal excommunication. Adolf died shortly afterwards in the Battle of Göllheim fighting against his successor Albert of Habsburg. He was the second in the succession of so-called count-kings of several rivalling comital houses striving after the Roman-German royal dignity after the expiration the Hohenstaufen. The Nassaus, however, were not on the imperial throne long enough to establish themselves in larger landholdings to increase their hereditary power such as the Luxemburgers did in Bohemia or the Habsburgs did in Austria.
After Gerlach's death, the possessions of the Walram line were divided into Nassau-Weilburg and Nassau-Wiesbaden-Idstein.
Nassau-Weilburg (1344–1816)
Count Walram II began the Countship of Nassau in Weilburg (Nassau-Weilburg), which existed to 1816. The Walram line also received the lordship of Merenberg in 1328 and Saarbrücken (by marriage) in 1353. The sovereigns of this house afterwards ruled the Duchy of Nassau from its establishment in 1806 as part of the Confederation of the Rhine (jointly with Nassau-Usingen until 1816). The last reigning Duke, Adolph, became Duke of Nassau in August 1839, following the death of his father William. The Duchy was annexed to Prussia in 1866 after Austria's defeat in the Austro-Prussian War.