Kaspar von Schwenkfeld

Caspar (or Kaspar) Schwen(c)kfeld von Ossig ( listen ) (1489 or 1490 – 10 December 1561) was a German theologian, writer, and preacher who became a Protestant Reformer and spiritualist, one of the earliest promoters of the Protestant Reformation in Silesia.

Schwenckfeld came to Reformation principles through Thomas Müntzer and Andreas Karlstadt. However, he developed his own principles and fell out with Martin Luther over the eucharistic controversy (1524). He had his own views on the sacraments - the Heavenly Flesh doctrine - developed in close association with his humanist colleague, Valentin Crautwald (1465–1545). His followers became a new sect, which was outlawed in Germany, but his ideas influenced Anabaptism, Pietism on mainland Europe, and Puritanism in England.

Schwenckfeld was born in Ossig near Liegnitz, Silesia now Osiek, near Legnica, Poland, to noble parents in 1489. From 1505 to 1507 he was a student in Cologne, and in 1507 enrolled at the University of Frankfurt on the Oder. Between 1511 and 1523, Schwenckfeld served the Duchy of Liegnitz as an adviser to Duke Charles I (1511–1515), Duke George I (1515–1518), and Duke Frederick II (1518–1523).

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