How many movies have Markus Eiche and Richard Wagner collaborated on?

They have worked on 3 movies together! Their first movie together was Tannhauser (2014) while their highest rated movie together was The Ring of the Nibelung: The Rhinegold (2016). They have not worked together since The Ring of the Nibelung: Twilight of the Gods (2016). They are most known for their music films together.