Johann was born in BET 1208 AND 1213, the son of Albrecht von Brandenburg and Mathilde von der Lausitz. The place is not known.
He died on 04 APR 1266 in Brandenburg.
He had two marriages/partners. His first wife was Sofia Valdemarsdotter af Danmark, who he married in BET 1233 AND 1235. The place has not been found. Their six known children were Konrad (c1237-<1304), Johann II (1236-1281), Otto IV (?-1308/09), Erich (?-1295), Albrecht (?-1292/93) and Helene (?-1305).
His second wife was Brigitte Jutta von Sachsen, who he married on 7 MAY 1255. The place has not been found. Their four known children were Heinrich I (1256-1318), Agnes (1257-1304), Mechtild (1257-<1284) and Hermann (?-1291).
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Johann I von Brandenburg |
Albrecht von Brandenburg |
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Mathilde von der Lausitz |
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| Event | Date | Details | Source | Multimedia | Notes | ||
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| Birth | BET 1208 AND 1213 |
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| Death | 4 APR 1266 |
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| Attribute | Date | Description | Details | Source | Multimedia | Notes |
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| Nobility Title | FROM 1220 TO 1226 | markgraf der Mark Brandenburg |
Note 1
Note 2
not Richards ancestor