Palatine Zweibrücken

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The Duchy of Palatinate‑Zweibrücken was a small state of the Holy Roman Empire with its capital at Zweibrücken. It existed from 1459 to 1801 and was ruled by a branch of the Wittelsbach dynasty. For a time the ruling family also provided the kings of Sweden (1654–1720).

How it began and grew
- In 1459 Stephen, Count Palatine of Simmern‑Zweibrücken, divided his lands between his sons. Louis I received Zweibrücken and Veldenz, while Palatine‑Simmern went to the other son.
- The duchy formed from parts of Veldenz, Zweibrücken and, later, other Palatine lands. It gradually acquired territories such as Bischweiler (1542) and Lützelstein (1553), and its capital moved from Meisenheim to Zweibrücken in 1477.
- The duchy’s coat of arms from around 1720 combined symbols from several Palatine and related territories.

Religion and government
- Reformation began in the 1520s, so many towns were Lutheran or Reformed. Over time the duchy was mainly Protestant, but church arrangements changed with rulers and wars.
- The duke held strong, centralized power. The eight districts of the duchy were governed by officials, with the Duke and his cabinet as the highest authority. Justice and administration were closely linked, and the duchy did not have a separate, modern judicial system.
- The Alexander Church in Zweibrücken (built 1493–1514) is an important historic church.

Key events and changes
- The duchy’s borders shifted through the 16th–18th centuries as it traded lands with the Electoral Palatinate and other neighboring territories.
- French wars and occupation disrupted the region in the late 17th century. Zweibrücken was annexed by France in 1680, briefly brought under Swedish influence after 1697, and finally returned to imperial control.
- In 1718 the Swedish connection ended. In 1734 Count Palatine Christian III of Birkenfeld received Zweibrücken.
- The left bank of the Rhine was occupied by France in 1793. The duchy was formally dissolved in 1801 by the Treaty of Lunéville and became part of France’s Mont‑Tonnerre department (Mont-Tonnerre).

Aftermath
- Following the 1815 Congress of Vienna, most of the former lands were given to Bavaria and formed part of the Rheinkreis (later the Palatinate, or Pfalz). Today the region is part of the modern Rhineland-Palatinate.

Notes
- The rulers sometimes used the title Count Palatine before being recognized as dukes.
- The duchy’s history includes ties to Sweden and to other Palatine territories, reflecting the complex politics of the Holy Roman Empire.