Agnes of Meissen (born before 1264 – died after September 1332) was a noblewoman, the daughter of Albert II, Margrave of Meissen and his wife Margaret of Sicily.Nathalie Kruppa, Jürgen Wilke: Kloster und Bildung im Mittelalter Vandenhoeck & Ruprecht, Göttingen 2006, .
Agnes was married with Henry I "the Marvelous" of Brunswick-Grubenhagen, in 1282.Braunschweigisches Biographisches Lexikon, Appelhans 2006, They had 16 children: Elizabeth (born c. 1282), married Frederick, Count of Beichlingen Otto (born c. 1283, died in or before 1309) Albert (born c. 1284, died after 1341), joined the Teutonic Order Adelaide (1285–1320), married King Henry I of Bohemia Facie (daughter; born c. 1286, died before or in 1312) Agnes, Abbess of Osterode Henry II, Duke of Brunswick-Lüneburg Frederick Adelheid of Brunswick, married to Andronikos III Palaiologos Conrad (c. 1294 – c. 1320) Mechtild (c. 1295 – 14 March 1344), married John II of Werle Ernest I, Duke of Brunswick-Grubenhagen William, Duke of Brunswick-Grubenhagen Richardis, Abbess of Osterode Margaret (born c. 1300, died in or after 1312) John I, Duke of Brunswick-Grubenhagen
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