Career
The death of Duke Otto II of Merania on 19 June 1248 at Niesten Castle brought the end to the Imperial Duchy of Merania, in whose service the Herren (Lords) von Sonneberg had managed properties in the areas of Coburg and Sonneberg. Because of his service, Henry II was given the Herrschaft (territorial dominion) of Sonneberg and the authority to govern lieutenant In 1252 and around 1260 he acquired from the Benedictine Abbey of Saalfeld the extensive possessions in the surrounding areas of Sonneberg and Coburg.
In 1279, with other associates of the Sonnefeld Monastery, he was found among the witnesses of the foundation charter of the Himmelkron Monastery, where the first nuns were assumed to have come from Sonnefeld.
(de) Joachim Hotz: Zisterzienserklöster in Oberfranken (Cistercian Monasteries in Upper Franconia).
