Nielsen Hayden genealogy
Descendants of Konrad of Diepholz
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Father: Gottschalk of Diepholz
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Konrad of Diepholz ( - Bef 1239)
           
Johann II of Oldenburg
(Abt 1270 - Bef 6 Dec 1316)(m. 15 Sep 1298)
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               └─ Konrad I of Oldenburg
( - Bef 9 Feb 1348)
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Ingeborg of Holstein
(Between 1314 and 1317 - Aft 1342)(m. Bef 13 May 1339)
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                   └─ Christian V of Oldenburg
( - Between 10 Nov 1399 and 22 Apr 1403)
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Agnes of Honstein
(Abt 1360 - 1 Sep 1407)(m. Bef 29 Aug 1377)
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                       └─ Dietrich of Oldenburg
( - 14 Feb 1440 Delmenhorst, Lower Saxony, Germany)
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Heilwig of Holstein
(1398 - Bef 11 Nov 1436 bur.Oldenburg, Lower Saxony, Germany)
                        (m. 23 Nov 1423)
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                        (m. 23 Nov 1423)
                           └─ Christian I, King of Denmark, Norway, and Sweden
(Feb 1426 -
                            21 Mar 1481 Copenhagen, Denmark) =>
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                            21 Mar 1481 Copenhagen, Denmark) =>
                            + Dorothea of Brandenburg
(1430 - 10 Nov 1495 Kalundborg, Denmark)
                            (m. 28 Oct 1449 Copenhagen, Denmark)
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                            (m. 28 Oct 1449 Copenhagen, Denmark)