Unitas Fratrum was the original name for the organisation that became the Moravian Church.
Following the involvement of Andrzej Wiszowaty Sr. and Benedykt Wiszowaty in the Bibliotheca fratrum Polonorum, Benedykt's son Andrzej Wiszowaty Jr., great-great-grandson of Fausto Sozzini, taught in the John Sigismund Unitarian Academy 1726-1740, in the years leading to the drafting of the Summa Universae Theologiae Christianae secundum Unitarios (recognised by Joseph II in 1787).
Wullschlägel received his primary education in Niesky, Saxony, his theological instruction in Gnadenfeld, Silesia, spent the years 1844-47 on Antigua, 1847-49 in Jamaica, and 1849-1855 in Paramaribo, Surinam as head of the Mission of the Unitas Fratrum - The Moravian Church.