Born: December 21, 1672, Krobsdorf, Silesia (now Krobica, Poland).
Died: January 12, 1730, Niederwiese, Silesia (now Wieża, Poland).

Johann was the son of Anton Schwedler, a farmer and rural magistrate at Krobsdorf.
He enrolled at the University of Leipzig in 1695 (MA 1697).
In 1698, he was appointed assistant minister at Niederwiese. He became diaconus in 1698, after the death of his predecessor, Christoph Adolph. In 1701, he became the pastor there.
He was a gifted preacher, and founded an orphanage in Niederwiese. He and Nikolaus von Zinzendorf lived near each other and were friends.