German theologist and Lutheran reformer. Born 1498, died 1552.
Preaching at Nürnberg, Osiander participated in several of the major theological debates of his time. However, in 1548, he was forced to flee to Königsberg, where he became a minister and professor, in 1550.
Andreas Osiander's quirky theological views set off a violent debate on dogma - he claimed that the salvation of mankind is the result of the divine essence of Christ taking up residence in the person being saved, in some mystic fashion. This viewpoint was rejected for inclusion in the Formula of Concord.