Thietmar IV, Margrave of the Saxon Ostmark

Biografi - Biography

Thietmar var

greve av Suevogau og Nord-Thüringen og

markgreve av (saksisk) Ostmark 1015 - 1030.

I henhold til «Keiserzeit» av W. Giesebrecht var han sønn til Gero II som døde i 1015.

Gero var markgreve av Ostmark. Han forenet i 1002 Ostmark som han arvet fra sin far med Lausitz som han forvaltet for Hado, til et stort og avrundet landområde. I 1010 var han en av keiser Henrik II's førere ved et streiftog mot Polen. Han ble drept i 1015 under keiserens felttog mot Polen. 1

1.

Mogens Bugge: Våre forfedre, nr. 407. Bent og Vidar Billing Hansen: Rosensverdslektens forfedre, side 100.

Thietmar, Margrave of the Saxon Ostmark From Wikipedia, the free encyclopedia Thietmar (IV) (born ca. 990; died 10 January 1030) was the Count of the Schwabengau and Nordthüringgau from 1010 and the Margrave of the Saxon Ostmark from 1015 until his death. He was the son and successor of Margrave Gero II. His mother was Adelaide. In 1028, the Ostmark, with the rest of the eastern marches of the Duchy of Saxony fell under attack from Mieszko II of Poland. The Emperor Conrad II rushed from central Saxony and trekked over very wild terrain to besiege the Poles in Bautzen. Meanwhile, Bretislaus, son of Oldrich of Bohemia, invaded and conquered the March of Moravia, which had been lost to Bohemia since 1003. Conrad, however, failed to take Bautzen (1029) and returned to the Rhineland by wintertime, leaving the defences of the realm in the hands of Dietrich II of Wettin and Thietmar, who died early in January. On his death, Mieszko attacked and destroyed some hundred German villages. The setback was severe: the east of the Ostmark was lost. He was buried in Helmarshausen. Thietmar was succeeded by his son Odo II. He left a daughter, Oda, who married William III of Weimar and then Dedo II of Wettin, who succeeded her brother Odo.
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"Ostmark (German: Sächsische Ostmark ) was a margraviate and borderland within the Holy Roman Empire between the 9th and 12th centuries. The term "Ostmark" comes from the Latin term Marchia Orient and could originally refer to either a region created on the eastern border of the Duchy of Saxony or another on the eastern border of the Duchy of Bavaria: the Bavarian Ostmark, corresponding to what later became Austria .
Ostmark was created out of the great Geromark , Marca Geronis , after the death of Margrave Gero I "the Great" in 965. His lands were divided by the establishment of Nordmark between the rivers Elbe and Oder , while the remaining eastern Saxony consisted of the southern territory between the Saale and Bóbr , roughly corresponding the modern German state of Saxony. Emperor Otto I installed Odo I as Margrave.
At the same time , the Margraviate of Meissen , the Margraviate of Merseburg and the Margraviate of Zeitz were created in the southern half of Ostmark. In 1002, Odo's successor, Gero II, lost the eastern part of Ostmark to Bolesław I of Poland , but Bolesław's son Mieszko II was forced to return the conquered territory to Emperor Konrad II in 1031. In 1046, Dedi I of the House of Wettin inherited Ostmark, and his son and successor Henry I received the Margraviate of Meissen as a fief from Emperor Henry IV in 1089. Both margraviates remained under the administration of the house of Wettin and later became the core of late medieval Saxony.
After the Margraviate of Landsberg and the Margraviate of Lausitz were separated from Ostmark, the remaining territories were united with the Margraviate of Meissen in 1123. The last time that Ostmark and Lausitz are mentioned as separate states was when the former was received by Henry of Groitzsch in 1128 and the latter was reserved until 1131 However, Henry was not allowed to rule and in 1136 the territory had once again fallen to Konrad I of Meissen . In the following centuries, the territory was divided several times; most of it belonged to the Ernestine Duchies .
The term Osterland is still used today to describe the historical region that was the center of the margraviate. While the boundaries of Ostmark have changed several times in modern times, the term generally refers to the area between the rivers Saale and Mulde .
--- List of Margraves ---
Odo I, 965-993
Gero II, 993-1015
Thietmar, 1015-1030"
[https://sv.wikipedia.org/wiki/Ostmark_%28tysk-romerska_riket%29]