1. | Johann I Oldenburg was born in 1206 in Oldenburg, Oldenburg, Niedersachsen, Germany (son of Christian Oldenburg and Agnes VonAltena); died in 1270 in Oldenburg, Oldenburg, Niedersachsen, Germany. Johann married Richza Hoya in 1226 in Oldenburg, Oldenburg, Niedersachsen, Germany. Richza (daughter of HEINRICH I VonHoya and RICHZA Wolpe) was born in 1207 in Hoya, Hannover, Niedersachsen, Germany; died on 19 Jun 1264 in Oldenburg, Stadt Oldenburg, Niedersachsen, Germany. [Group Sheet] [Family Chart]
Children:
- Christian Oldenburg was born in 1228 in Oldenburg, Niedersachsen, Germany; died in 1285 in Oldenburg, Niedersachsen, Germany.
- Hedwig Countess of Oldenburg was born in 1232 in Oldenburg, Oldenburg, Niedersachsen, Germany.
- Heinrich Oldenbur was born in 1234 in Oldenburg, Oldenburg, Niedersachsen, Germany; died in 1289.
- Moritz Oldenburg was born in 1236 in Oldenburg, Oldenburg, Niedersachsen, Germany; died in 1319.
- Otto Oldenburg was born in 1238 in Oldenburg, Oldenburg, Niedersachsen, Germany; died on 2 Feb 1304.
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