the territory seized by the Free City of Danzig, which prior belonged to the Ecclesiastical Province of West Prussia, transformed into the Regional Synodal Federation of the Free City of Danzig (). It remained an ecclesiastical province of the Evangelical Church of the old-Prussian Union, since the Danzig Senate (government) did not oppose cross-border church bodies. The Danzig ecclesiastical province also co-operated with the United Evangelical Church in Poland as to the education of pastors, since its Polish theological students of German native language were hindered to study at German universities by restrictive Polish pass regulations. The congregations in the League of Nations mandate of the Klaipėda Region () continued to belong to the . When from 10 to 16 January 1923 neighbouring Lithuania conquered the mandatory territory and annexed it on 24 January, the situation of the congregations there turned precarious. On 8 May 1924 Lithuania and the mandatory powers France, Italy, Japan and the United Kingdom signed the Klaipėda Convention, granting autonomy to the inhabitants of the Klaipėda Region. This enabled the Evangelical Church of the old-Prussian Union to sign a contract with the Memel autonomous government () under Viktoras Gailius on 23 July 1925 in order to maintain the affiliation of the congregations with the Evangelical Church of the old-Prussian Union. The Evangelical congregations in the Klaipėda Region were disentangled from the Ecclesiastical Province of East Prussia and formed the Regional Synodal Federation of the Memel Territory (Landessynodalverband Memelgebiet), being ranked an ecclesiastical province directly subordinate to the Evangelical Supreme Church Council with an own consistory in Klaipėda (est. in 1927), led by a general superintendent (at first Franz Gregor, after 1933 ). On 25 June 1934 the tiny church body of the Oldenburgian exclave Birkenfeld merged in the Rhenish ecclesiastical province. The 1922 constitution of the Evangelical Church of the old-Prussian Union included much stronger presbyterial structures and forms of parishioners' democratic participation in church matters. The parishioners of a congregation elected a presbytery and a congregants' representation (). A number of congregations formed a deanery (), holding a deanery synod () of synodals elected by the presbyteries. The deanery synodals elected the deanery synodal board (), in charge of the ecclesiastical supervision of the congregations in a deanery, which was chaired by a superintendent, appointed by the provincial church council () after a proposal of the general superintendent. The parishioners in the congregations elected synodals