line and their sovereignty was severely restricted. They were named after their owner's residences and disappeared with the death of their first duke, because none of them fathered surviving male heirs. Before it died out, the Saxe-Merseburg-Spremberg line inherited all of Saxe-Merseburg. Until 1715 August (born: 15 February 1655 in Merseburg; died: 27 March 1715 in Zörbig), Duke of Saxe-Merseburg-Zörbig Until 1690 Philipp (born: 26 October 1657 in Merseburg; died: 1 July 1690 in Fleurus), Duke of Saxe-Merseburg-Lauchstädt Until 1731 Heinrich (born: 2 September 1661 in Merseburg; died: 28 July 1738 in Doberlug), Duke of Saxe-Merseburg-Spremberg until 1731, inherited Saxe-Merseburg in 1731 References Martina Schattkowsky/Manfred Wilde (Hg.): Sachsen und seine Sekundogenituren. Die Nebenlinien Weißenfels, Merseburg und Zeitz (1657–1746). Schriften zur Sächsischen Geschichte und Volkskunde, Band 33. Leipziger Universitätsverlag, Leipzig 2010, . Manfred Wilde: Das Barockschloss Delitzsch als Witwensitz der Herzöge von Sachsen-Merseburg. In: Barocke Fürstenresidenzen an Saale, Unstrut und Elster, edited by the Museumsverbund Die fünf Ungleichen, Michael Imhof Verlag, Petersberg 2007, , . External links Johann Huebner ... Three hundred and thirty-three Genealogical Tables, Table 170 Former states and territories of Saxony-Anhalt Merseburg 1657 establishments in the Holy Roman Empire 1738 disestablishments in the Holy Roman Empire States and territories established in 1657 House of Wettin