Person

Theoderich von Treyden

d. 1219 · 13th century · Also known as Theodoric of Estonia

Theoderich von Treyden was a Cistercian monk and missionary in Livonia and the first abbot of Dünamünde near Riga. With Bishop Albert of Riga he founded the Livonian Brothers of the Sword in 1202. Appointed bishop of Estonia, he was killed in 1219 when Estonians attacked the Danish camp at Lyndanisse (Tallinn) during the Battle of Lyndanisse.

Theoderich von Treyden
Image: Unknown author · Public domain · Wikimedia Commons

Mentioned in 1 state history

Livonian Brothers of the Sword

See also

Cite this entry
APA
The Epoch Institute. (2026). Theoderich von Treyden. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/theoderich-von-treyden
MLA
“Theoderich von Treyden.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/theoderich-von-treyden. Accessed .
Chicago
The Epoch Institute. “Theoderich von Treyden.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/theoderich-von-treyden.
Harvard
The Epoch Institute (2026) ‘Theoderich von Treyden’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/theoderich-von-treyden (Accessed: ).

Last reviewed October 2026Random entry ↻