Their castle stood in the Thuringian Forest on the border of Hesse, and they embraced Albigensian doctrines. The whole family was put to death by Landgrave Conrad of Thuringia, except for the youngest son, who was then five years old. He was carried away secretly by a monk, an Albigensian adept from Languedoc, and placed in a monastery under the influence of the Albigenses, where he was educated and met the four Brothers later to be associated with him in the founding of the Rosicrucian Brotherhood.