In 1722, Zinzendorf offered an asylum to a number of persecuted wanderers from Moravia and Bohemia (parts of Czech Republic today), and permitted them to build the village of Herrnhut on a corner of his estate of Berthelsdorf. Most of the initial refugees who came to this asylum were recruited by Christian David and came from areas where the early Protestant groups such as the Unitas Fratrum had been dominant prior to the Thirty Years' War. As the village grew it became known as a place of religious freedom, and attracted individuals from a variety of persecuted groups, including the Schwenkfelders. The concentration of differing beliefs in the village produced intense conflict. Personal and religious differences between the estate manager Heitz and Johann Andreas Rothe, the Lutheran pastor of Berthelsdorf, were made more tense by the apocalyptic preaching of Johann Sigismund Krüger.