Following the Treaty of Brömsebro on 13/23 August 1645O.S./N.S. Sweden seized the Prince-Archbishopric of Bremen, with Swedish troops anyway in the country as concluded by the war alliance between the kingdom and the prince-archbishopric. On 27 October/ 9 November 1647O.S./N.S. Queen Christina of Sweden promised the convent with all its revenues to Count Gustaf Adolf Lewenhaupt/Löwenhaupt (1619–1656), who on 30 July/ 9 August 1651O.S./N.S. was invested with the convent as a fief heritable in the male line (Mannlehen). In 1647 there were twelve conventuals, and 14 women aspirants held abeyances to a sustenance in the convent. By the Peace of Westphalia in 1648 the prince-archiepiscopal elective monarchy was secularised as the heritable Duchy of Bremen, which was jointly ruled with the new Principality of Verden, as Bremen-Verden, since both imperial fiefs were bestowed on the Swedish crown. By the 1650s the previous religious bodies, such as the Lutheran cathedral chapter or the archdeaconries, had been abolished, their revenues mostly confiscated, with only few of them not granted to Swedish war veterans. On 2/12 September 1651O.S./N.S. the general government of Swedish Bremen-Verden appointed the first general superintendent for the new , the state church of Bremen-Verden, presiding over the consistory in Stade. The General Diocese of Bremen-Verden became a subdivision of the Evangelical Lutheran State Church of Hanover on its formation in 1864. Since 1936 its locally competent church district, the General Diocese, is succeeded by the Stade Diocese (Sprengel Stade). On 21/31 May 1650O.S./N.S. Lewenhaupt/Löwenhaupt's plenipotentiary Johann Friedrich [von] Arensen, Privy Councillor Nicolaus von Höpken, general government of Swedish Bremen-Verden, and the conventuals concluded a settlement about the latter's future sustenance. The abeyances were not acknowledged, their aspirants came away empty-handed. The acknowledged conventuals would receive their annuities for all their lives (or until their marriage) and usually lived in the former convent buildings until their death (or marriage).