The Protestant Church in the Rhineland emerged on 12 November 1948, when the Ecclesiastical Province of the Rhineland within the Evangelical Church of the old-Prussian Union gained independence as its own church body.
The Protestants in Hohenzollern merged in 1950 with the Evangelical-Lutheran Church in Württemberg, whilst retaining the previous old-Prussian order of service.[4]
The legislative assembly of the Evangelical Church in the Rhineland is the regional synod (Landessynode). The election of the synod is for four years. Since 1975 the synod meets annually in January in Bad Neuenahr-Ahrweiler (before 1975 in Bad Godesberg). Its elected leader (praeses) is also leader of the church.
The legislative body, then called the provincial synod (Provinzialsynode), was already established when the Rhenish church still formed an ecclesiastical province of the Evangelical Church of the old-Prussian Union. The then praesides were only speakers of the synod but not the leaders of the ecclesiastical province. Instead this function was with the general superintendents. Since the ecclesiastical province assumed its independence each praeses is speaker of the synod and leader of the church.
1835–1846: Franz Friedrich Gräber
1847–1851: Georg August Ludwig Schmidtborn
1853–1860: Johann Heinrich Wiesmann
1862–1864: Johann Karl Friedrich Maaß
1865–1877: Friedrich Nieden
1877–1888: Stephan Friedrich Evertsbusch
1890–1893: Karl Wilhelm Ferdinand Kirschstein
1893–1898: Valentin Umbeck
1899–1905: Friedrich Wilhelm Schürmann
1908–1912: Albert Hackenberg
1914–1917: Georg Hafner
1919–1932: Friedrich Walter Paul Wolff
1932–1934: Friedrich Schäfer
1934–1935: Paul Humburg
1935–1948: Friedrich Horn, praeses of the provincial synod
1948–1957: Heinrich Karl Ewald Held, praeses of the regional synod and leader of the church