Johann Osthoff von Mengede information

Johann von Mengede (also Johann von Mengden, called Osthof) (c. 1400 — 15 August 1469) was a knight of the Teutonic Knights.^[1] Most notably, from 1442 to 1450, he was Komtur of Reval and then from 1450 to 1469 a Master (Landmiester) of the Livonian Order. He was elected as the Landmaster of Livonia in April, 1450.^[2]

He is the best known representative of the Brandenburg noble family from Mengede.

^ Ernst Seraphim Geschichte von Livland: 1. Band: Das Livländische Mittelalter und die Zeit der Reformation (Bis 1582), Verlag BiblioBazaar, LLC, 2009, ISBN 1-113-07497-3, S. 145–151,
^ According to Neitmann Sommer 1469, Seraphim, p. 150 in May 1469, Napiersky, p. 47 (No. 2038), Mengede granted a fief on June 12, 1469. His successor was elected on January 7, 1470 (Neitmann).

[1] Ernst Seraphim Geschichte von Livland: 1. Band: Das Livländische Mittelalter und die Zeit der Reformation (Bis 1582), Verlag BiblioBazaar, LLC, 2009, ISBN 1-113-07497-3, S. 145–151,

[2] According to Neitmann Sommer 1469, Seraphim, p. 150 in May 1469, Napiersky, p. 47 (No. 2038), Mengede granted a fief on June 12, 1469. His successor was elected on January 7, 1470 (Neitmann).