Friedrich Bernhard Ferdinand Michelis

Friedrich Bernhard Ferdinand Michelis (July 27, 1815 – May 28, 1886) was a German theologian and philosopher born in Münster.

From 1845 he was a chaplain and school teacher in Duisburg, and later (1849–54) an instructor at the Episcopal Theological Institute in Paderborn.

In 1860 he participated in the Erfurt conference that would lead to Julie von Massow's Ut Omnes Unum movement, which sought the reunification of Catholicism with Protestantism.

[1] In his writings, Michelis attempted to reconcile the teachings of Plato and those of modern science with the doctrines of Roman Catholicism.

But he also opposed the influence of the Jesuits and the dogma of papal infallibility in several pamphlets (1869–70), which led to his excommunication.