Jost von Barby 18 May 1544 (Barby?) - 9 Aug 1609 Rosenburg (1544–1609) Parents Wolfgang I, Count of Barby-Mühlingen Agnes of Mansfeld Children Jobst Gunther, Count of Barby-Muhlingen Albert Frederick, Count of Barby-Muhlingen Agnes Elisabeth of Barby-Muhlingen Siblings Agnes of Barby-Mühlingen Wolfgang II of Barby-Mühlingen Christine, Gräfin von Barby-Mühlingen Albrecht X of Barby and Mühlingen Gräfin Margarethe von Barby-Mühlingen Partners Anna of Pomerania Sophia of Schwarzburg-Rudolstadt