Thietmar (also Thiatmar, Dietmar, or Thiommar) (died 1 June 932), Count and Margrave, was the military tutor (vir disciplinae militaris peritissmus) of Henry the Fowler while he was the heir and then duke of the Duchy of Saxony

Duchy of Saxony

The medieval Duchy of Saxony was a late Early Middle Ages "Carolingian stem duchy" covering the greater part of Northern Germany. It covered the area of the modern German states of Bremen, Hamburg, Lower Saxony, North Rhine-Westphalia, and Saxony-Anhalt and most of Schleswig-Holstein...

. He probably kept a small body of elite retainers (though he once feigned at having thirty legions behind him) armed with the latest in military technology and well-supplied with expensive horses.

He married a cousin of Hatheburg, first wife of Henry the Fowler. She left him two sons, Siegfried, Count of Merseburg

Siegfried, Count of Merseburg

Siegfried was the Count and Margrave of Merseburg from an unknown date before 934 until his death. He does not appear with the title of margrave in contemporary royal charters and diplomas, so the title was informal and never official....

, and Gero the Great. His daughter Hidda married Christian of Thuringia and was the mother of Thietmar, Margrave of Meissen

Thietmar, Margrave of Meissen

Thietmar was the Margrave of Meissen from 970 until his death. Thietmar was the eldest of three brothers, all sons of Hidda, sister of Gero the Great, and Count Christian of Thuringia...

, Archbishop Gero of Cologne and Odo I, Margrave of the Saxon Ostmark

Odo I, Margrave of the Saxon Ostmark

Odo I was the Margrave of the Saxon Ostmark from 965 until his death....

.

Sources

• Leyser, Karl. "Henry I and the Beginnings of the Saxon Empire." The English Historical Review, Vol. 83, No. 326. (Jan., 1968), pp 1–32.