[1] He was born in Fehraltorf, Zürich, Switzerland, as son of Adrian Wirth, a minister.
[1] His anti-Catholic writing was against the supposed harmony of Catholic doctrines and institutions with the early Church, concentrating on baptism, the Eucharist, church festivals, fasting, religious orders, the rule of the papacy, and funerals.
He wrote: He was a vocal opponent of the Jesuits,[3] and also attacked the Lutheran Formula of Concord.
[5] Polemical works against Lutherans included his Concordia discors, seu de origines et progressu formulæ concordiæ Bergensis (1607), which was directed against the Formula of Concord.
A collected edition of Hospinian's works appeared at Geneva, 1681 (7 vols.