Conrad, Margrave of Brandenburg-Stendal
Margrave of Brandenburg-Stendal
Margrave Conrad I of Brandenburg (c. 1240 – 1304) was a member of the House of Ascania and a co-ruler of Brandenburg.
Life
Conrad I was the fourth of six children of Margrave John I of Brandenburg and his wife Sophia, daughter of King Valdemar II of Denmark. He was 26 years old when, in 1266, his father died and he and his elder brothers John II and Otto IV became co-rulers of Brandenburg.
Conrad went on to rule in the newly acquired Neumark part of Brandenburg east of the Oder River, though he rarely appeared on the political scene. On one occasion, he assisted his brother Otto IV, when they allied with Duke Mestwin II of Pomerelia according to the 1269 Treaty of Arnswalde, occupying the Pomerelian city of Gdańsk and gaining the Pomeranian territory around Rügenwalde.
He died in 1304 and was buried beside his wife in Chorin Abbey. There is an entry in the register at Chorin as follows: Anno 1304 ist zu Sched (?) gestorben Markgraf Conrad (I.) Churfürst zu Brandenburg und ist allhier begraben.
Anno 1304 Margrave Conrad (I), Elector in Brandenburg died at Sched (?) and was buried here.
Marriage and issue
Conrad was married to Constance of Poznań (d. 1281), daughter of the Piast duke Przemysł I of Greater Poland.
This brief starts where responsible research should: with the source description of “Conrad, Margrave of Brandenburg-Stendal” as margrave of Brandenburg-Stendal. Everything that follows is an evidence route, not borrowed authority.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jun 7, 2026. The linked authority identifier is Q1782077. VIAF identifies the subject as 95402968. 1 of 2 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1240, 1304, 1266 and 1269.
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This entry incorporates text from “Conrad, Margrave of Brandenburg-Stendal” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.