BiographyJulius Ernst Welf von Braunschweig-Dannenberg was born 10 March 1571 in Dannenberg, Lower Saxony, Germany to Heinrich von Braunschweig-Dannenberg (1533-1598) and Ursula von Sachsen-Lauenburg (1552-1620) and died 26 October 1636 in Dannenberg, Lower Saxony, Germany of unspecified causes. He married Marie von Ostfriesland (1582-1616) 25 April 1614 in Dannenberg, Lower Saxony, Germany. He married Sibylle von Braunschweig-Lüneburg (1584-1652) 23 November 1617 in Dannenberg. Notable ancestors include Henry II of England (1133-1189), William I of England (1027-1087), Charlemagne (747-814), Hugh Capet (c940-996), Alfred the Great (849-899), Rurik (c832-879). Ancestors are from Germany, France, the United Kingdom, Austria, Italy, Belgium, Russia, Ukraine, the Czech Republic, Byzantium, Lithuania, Belarus, Switzerland, Spain, Hungary, Bohemia, Slovakia, Slovenia, the Netherlands, Poland, the Byzantine Empire.
|Offspring of Julius Ernst von Braunschweig-Dannenberg and Marie von Ostfriesland (1582-1616)|
|Siegmund Heinrich von Braunschweig-Dannenberg (1615-1615)|| |
|Marie Katharina von Braunschweig-Dannenberg (1616-1665)||10 June 1616 Dannenberg, Lower Saxony, Germany||1 July 1665 Grabow, Mecklenburg-Western Pomerania, Germany|| Adolf Friedrich I. von Mecklenburg-Schwerin (1588-1658)|
|Offspring of Julius Ernst von Braunschweig-Dannenberg and Sibylle von Braunschweig-Lüneburg (1584-1652)|
|August von Braunschweig-Dannenberg (1619-1619)|| |
|Anna Maria von Braunschweig-Dannenberg (1622-1622)|