List of Famous people named Thietmar

Thietmar, Prince-Bishop of Merseburg from 1009 until his death, was an important chronicler recording the reigns of German kings and Holy Roman Emperors of the Ottonian (Saxon) dynasty. Two of Thietmar's great-grandfathers, both referred to as Liuthar, were the Saxon nobles Lothar II, Count of Stade, and Lothar I, Count of Walbeck. They were both killed fighting the Slavs at the Battle of Lenzen.

Thietmar (IV) 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.

Thietmar (I), Count and Margrave, was the military tutor of Henry the Fowler while he was the heir and then duke of the Duchy of Saxony. He probably kept a small body of elite retainers armed with the latest in military technology and well-supplied with expensive horses. His armored cavalry played a decisive role in winning the Battle of Lenzen on 4 September 929, securing German domination along the Elbe river against West Slavic peoples.

Thietmar (II) was Margrave of Meissen from about 976 until his death.