Nassau, derived from the town of Nassau on the Lahn River in Rhineland-Palatinate, Germany, gained historical significance through the House of Nassau. The noble dynasty later formed the Dutch royal House of Orange-Nassau following William I's inheritance of the Principality of Orange in 1544, leading to the adoption of the name Nassau across various locations and institutions worldwide. The name traces its etymology to German nass (wet) and Au(e) (floodplain).
Nassau may refer to:
Nassau the Established County or State within the German Confederation or the HRE
The House of Orange-Nassau is the current reigning house of the Netherlands. A branch of the European House of Nassau, the house has played a central role in the politics and government of the Netherlands and elsewhere in Europe, particularly since William the Silent organised the Dutch Revolt against Spanish rule, which after the Eighty Years' War (1568–1648) led to an independent Dutch state. William III of Orange led the resistance of the Netherlands and Europe to Louis XIV of France and orchestrated the Glorious Revolution in England that established parliamentary rule. Similarly, Queen Wilhelmina of the Netherlands was instrumental in the Dutch resistance during World War II.
The County of Nassau was a German state within the Holy Roman Empire and later part of the German Confederation. Its ruling dynasty, the male line of which is now extinct, was the House of Nassau.
A dynasty is a sequence of rulers from the same family, usually in the context of a monarchical system, but sometimes also appearing in republics. A dynasty may also be referred to as a "house", "family" or "clan", among others.
The Lahn is a 245.6-kilometre-long (152.6 mi), right tributary of the Rhine in Germany. Its course passes through the federal states of North Rhine-Westphalia (23.0 km), Hesse (165.6 km), and Rhineland-Palatinate (57.0 km).
Kirchheimbolanden, the capital of Donnersbergkreis, is a town in Rhineland-Palatinate, south-western Germany. It is situated approximately 25 km west of Worms, and 30 km north-east of Kaiserslautern. The first part of the name, Kirchheim, dates back to 774. It became a town in 1368, and the Sponheim family improved its security with many towers and walls. William, Duke of Nassau, ancestor of the royal families of Belgium, Sweden, Denmark and Norway, and of the grand-ducal family of Luxembourg, was born in Kirchheimbolanden. It was also ruled by the First French Empire between 1792 and 1814, before passing to the Kingdom of Bavaria in 1815. It was a rural district centre in the Rheinkreis, which was renamed Pfalz (Palatinate) in 1835.
Dillenburg, officially Oranienstadt Dillenburg, is a town in Hesse's Gießen region in Germany. The town was formerly the seat of the old Dillkreis district, which is now part of the Lahn-Dill-Kreis.
Fort Orange was the first permanent Dutch settlement in New Netherland; the present-day city and state capital Albany, New York developed near this site. It was built in 1624 as a replacement for Fort Nassau, which had been built on nearby Castle Island and served as a trading post until 1617 or 1618, when it was abandoned due to frequent flooding. Both forts were named in honor of the Dutch House of Orange-Nassau. Due to a dispute between the Director-General of New Netherland and the patroonship of Rensselaerswyck regarding jurisdiction over the fort and the surrounding community, the fort and community became an independent municipality, paving the way for the future city of Albany. After the English reconquered the region they soon abandoned Fort Orange in favor of a new fort: Fort Frederick, constructed in 1676.
Diez an der Lahn is a town in Germany's Rhein-Lahn district in Rhineland-Palatinate, on the borders of Hesse. Diez is the administrative seat of the municipality of Diez.
Rensselaerswyck was a Dutch colonial patroonship and later an English manor owned by the van Rensselaer family located in the present-day Capital District of New York in the United States.
Nassau is a town located in the German state of Rhineland-Palatinate. It lies on the lower course of the Lahn River, on the mouth of the Mühlbach, between Limburg an der Lahn and the spa town of Bad Ems, and is located in the Nassau Nature Park, surrounded by the Westerwald to the north and the Taunus to the south. The town is on the German-Dutch holiday road, the Orange Route. As of 2021, it had a population of 4,592.
The House of Nassau is a diversified aristocratic dynasty in Europe. It is named after the lordship associated with Nassau Castle, located in present-day Nassau, Rhineland-Palatinate, Germany. 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. The lords of Nassau were originally titled "Count of Nassau", subject only to the Emperor, and then elevated to the princely class as "Princely Counts". Early on they divided into two main branches: the elder (Walramian) branch, that gave rise to the German king Adolf, and the younger (Ottonian) branch, that gave rise to the Princes of Orange and the monarchs of the Netherlands.
Walram II of Nassau was Count of Nassau and is the ancestor of the Walramian branch of the House of Nassau.
Otto I of Nassau was Count of Nassau and is the ancestor of the Ottonian branch of the House of Nassau.
The Duchy of Nassau was an independent state between 1806 and 1866, located in what is now the German states of Rhineland-Palatinate and Hesse. It was a member of the Confederation of the Rhine and later of the German Confederation. Its ruling dynasty, now extinct, was the House of Nassau. The duchy was named for its historical core city, Nassau, although Wiesbaden rather than Nassau was its capital. In 1865, the Duchy of Nassau had 465,636 inhabitants. After being occupied and annexed into the Kingdom of Prussia in 1866 following the Austro-Prussian War, it was incorporated into the Province of Hesse-Nassau. The area today is a geographical and historical region, Nassau, and Nassau is also the name of the Nassau Nature Park within the borders of the former duchy.
Fort Nassau was the first Dutch settlement in North America, located beside the "North River" within present-day Albany, New York, in the United States. The factorij was a small fortification which served as a trading post and warehouse.
The County of Saarbrücken was an Imperial State in the Upper Lorraine region, with its capital at Saarbrücken. From 1381 it belonged to the Walram branch of the Rhenish House of Nassau.
Nassau-Usingen was a county of the Holy Roman Empire in the Upper Rhenish Circle that became a principality in 1688.
Nassau is a geographical, historical and cultural region in today's Rhineland-Palatinate and Hesse in western Germany. Named for the town of Nassau, it includes the territory of the Duchy of Nassau, a former sovereign country which existed until 1866. Occupied by Prussia and annexed into the Province of Hesse-Nassau in 1866, Nassau briefly became the name of a separate province, the Province of Nassau, in 1944. Much of the area is today part of the Nassau Nature Park. Nassau is also the name of the smaller Nassau collective municipality, the area surrounding the town of Nassau, which has been merged into Bad Ems-Nassau collective municipality.
Prima Divisio is the term used by historians for the Family Treaty from 1255 containing the first division of the county of Nassau between the brothers Walram II and Otto I.