Johann Osthoff von Mengede

Johann von Mengede was a knight of the Teutonic Knights. Most notably, from 1442 to 1450, he was Komtur of Reval and then from 1450 to 1469 a Master of the Livonian Order. He was elected as the Landmaster of Livonia in April, 1450.
He is the best known representative of the noble family from Mengede.

History

In 1461–1464, when Landmaster of Livonia Johann von Mengede arrested the Archbishop of Riga, Silvester Stodewescher and plundered Archbishopic lands, troops from Pskov occupied the eastern part of the Archbishopic lands — Adzele. Adzele inhabitants were either deported or converted to Orthodoxy.