Sophia of Brandenburg (1300–1356) was a daughter of Margrave
Henry I (1256–1318) and his wife
Agnes of Bavaria (1276–1345).
In 1327, she married Duke
Magnus "the Pious" of Brunswick-Wolfenbüttel (1304–1369), Duke of Brunswick-Lüneburg. The following children reached adulthood:
Agnes (1343–1404), married in c. 1360 to Count Heinrich/Henry of
Hohnstein(de) (d. 1408). They had about six children, two counts of Hohnstein.
Sophie (c. 1340 – c. 1394), married in c. 1360 to Count Dietrich V of Hohnstein (c. 1306 – 1379), cousin of Heinrich, sharing their county and lordships. She was Dietrich's second (possibly third) wife. The pair had one daughter: