Nielsen Hayden genealogy
Descendants of Hedwig of Rietberg
- Aft 1347Father: Friedrich I of Rietberg (Abt 1238 - 5 Jul 1282)
Mother: Beatrix von Horstmar ( - 24 Sep 1277)
Hedwig of Rietberg ( - Aft 1347)
Konrad V of Diepholz (m. Bef 1278)
   └─ Hedwig of Diepholz
    Johann II of Oldenburg (Abt 1270 - Bef 6 Dec 1316)(m. 15 Sep 1298)
       └─ Konrad I of Oldenburg ( - Bef 9 Feb 1348)
        Ingeborg of Holstein (Between 1314 and 1317 - Aft 1342)(m. Bef 13 May 1339)
           └─ Christian V of Oldenburg ( - Between 10 Nov 1399 and 22 Apr 1403) =>
            + Agnes of Honstein (Abt 1360 - 1 Sep 1407)(m. Bef 29 Aug 1377)