Frederik Sieverts - Pedigree | FamilyCentral
 14 May 1880 - 11 Dec 1960
 12 Dec 1841 - 7 Oct 1879
 25 Feb 1849 - 17 Oct 1929
 17 Jun 1802 - 5 Oct 1848
 15 Aug 1800 - 17 Dec 1861
 6 Jun 1803 - 18 Jun 1849
 1 Mar 1817 - 24 May 1871
 Abt 1778 -
 Abt 1777 -
 Abt 1781 -
 Abt 1795 -
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