The Genealogica Wettinensis names (in order) "Heinricum…Othonem Misnensem marchionem, Tidericum Orientalem marchionem, Dedonem comitem de Rochelitz, Heinricum comitem de Witin, Fridericum comitem de Brene" as sons of "Conradus Misnensis et Orientalius marchio [filius Thiemonis]" & his wife. The Chronicon Montis Serreni names (in order) brothers "Othonis Misniensis marchionis, Tiderici Orientalis marchionis, Heinrici comitis de Witin, Dedonis comitis de Rochelez, Friderici comitis de Brene." Pope Honorius III confirmed the foundation of Kloster Elchingen by "Berta comitissa et Lenugarda filia eius illiusque marito Corrado marchione et Henrico, Octone, Theoderico et Thetone filiis eorum", confirmed by Pope Calixtus II and Pope Innocent III, by charter dated 16 Aug 1225.
Graf von Groitzsch 1144. The Genealogica Wettinensis records that "Berta comitissa filia Wiperti, uxor Dedonis comitis" left Groitzsch to ""Dedoni filio Conradi marchionis" in 1144. Herr zu Rochlitz 1156. "Dedo…comes" sold property to Magdeburg convent, with the consent of "uxoris mee filiorum meorumque Theoderici et Philippi", by charter dated 13 Sep 1159. The Genealogica Wettinensis records that "Dedo comes" founded "ecclesiam Cillenensem [Zschillen]" in 1174.
Markgraf der Niederlausitz und Graf von Eilenburg 1185. The Genealogica Wettinensis records that "Dedo comes" redeemed "marchiam Orientalem" from Emperor Friedrich I for "quatuor milibus marcis" in 1185 after the death of "Tiderici marchionis".
The Chronicon Montis Serreni records the death "1190 XVII Kal Sep" of "Dedonem Orientalem marchionem", specifying his burial "in ecclesia Cillenensi". 1
Research Notes: