Dietrich von Viechtenstein Graf von Viechtenstein

  General Notes:

DIETRICH (-29/30 Nov [1145], bur Kloster Vornbach). According to the 14th century Genealogia comitum Neuburgensium sive Formbacensium, "Heinricus genuit Gebehardum et Dietricum". Wegener refers to a donation by brothers Gebhard and Dietrich to Göttweig after the death of their mother Adelheid dated [1090]. Graf von Viechtenstein 1116. The Codex Traditionum of Formbach monastery records a donation by "Domnus Dietricus comes de Viehtensteine" for the soul of "uxoris sue domne Adelheide". The necrology of Seeon records the death "III Kal Dec" of "Dietricus com". The necrology of Scheftlarn records the death "III Kal Dec" of "Dietricus com". The necrology of Melk records the death "II Kal Dec" of "Dietricus com".

m ADELHEID, daughter of --- (-14 Jun ----). The Codex Traditionum of Formbach monastery records a donation by "Domnus Dietricus comes de Viehtensteine" for the soul of "uxoris sue domne Adelheide". Wegener suggests that she was the daughter of Luitpold III Markgraf of Austria, on the basis of her husband's death being recorded in the necrology of Scheftlarn, a foundation of Markgraf Luitpold's son Otto Bishop of Freising with which the Grafen von Formbach had no other known connection. However, this hypothesis is difficult to sustain from a chronological point of view as Markgraf Luitpold III second marriage took place in 1105 while Adelheid was already married to Dietrich in 1120. The necrology of Melk records the death "XVIII Kal Jul" of "Adalheid com".

Graf Dietrich & his wife had [one] child: [Hedwig]. ¹

Dietrich married Adelheid.