in a pastoral role, they were imprisoned. Having now shown his hand as a tyrant bent on oppressing their religious freedom, and under continual police surveillance, the Evangelical Church in the Royal Prussian Lands began disintegrating. Old Lutheran schism By 1835, many dissenting Old Lutheran groups were looking to emigration as a means to finding religious freedom. Some groups emigrated to the United States and to Australia in the years leading up to 1840. They formed what are today the Lutheran Church–Missouri Synod (the second largest Lutheran denomination in the U.S), and the Lutheran Church of Australia, respectively. With the death of Frederick William III in 1840, King Frederick William IV ascended to the throne. He released the pastors who had been imprisoned, and allowed the dissenting groups to form religious organisations in freedom. In 1841, the Old Lutherans who had stayed in Prussia convened in a general synod in Breslau and founded the Evangelical-Lutheran Church in Prussia, which merged in 1972 with Old Lutheran church bodies in other German states to become today's Independent Evangelical-Lutheran Church (, or SELK). On 23 July 1845, the royal government recognised the Evangelical-Lutheran Church in Prussia and its congregations as legal entities. In the same year the Evangelical Church in the Royal Prussian Lands reinforced its self-conception as the Prussian State's church and was renamed as the Evangelical State Church of Prussia (). Protestant churches in Prussia's new provinces In 1850, the predominantly Catholic principalities of Hohenzollern-Hechingen and Hohenzollern-Sigmaringen, ruled by Catholic princely branches of the Hohenzollern family, joined the Kingdom of Prussia and became the Province of Hohenzollern. There had hardly been any Protestants in the tiny area, but with the support from Berlin congregational, structures were built up. Until 1874, three (later altogether five) congregations were founded and in 1889, organised as a deanery of its own. The congregations were stewarded by the Evangelical Supreme Church Council (see below) like congregations of expatriates abroad. On 1 January 1899, the congregations became an integral part of the Prussian state church. No separate ecclesiastical province was established, but the deanery was supervised by that of the Rhineland. In 1866, Prussia annexed the Kingdom of Hanover (then converted into the Province of Hanover), the Free City of Frankfurt upon Main, the Electorate of Hesse, and the Duchy of Nassau (combined as Province of Hesse-Nassau) as well as the Duchies of Schleswig and Holstein (becoming