Fischer Von Erlach. I. Johann Bernhard, a German architect, born in Prague or Vienna in 1650, died in Vienna, April 5, 1723. He acquired in Rome the style of Bernini, which was admired in Vienna, where he became the architect of prominent public buildings, including the palace of Schonbrunn and the church of San Carlo Borromeo.

II. Joseph Emanuel, son of the preceding, born about 1680, died about the middle of the 18th century. He was ennobled in 1735, and excelled in the same style of architecture as his father. In 1727 he constructed the first steam engine in Vienna.