Olaus Petri

Olof Persson, sometimes Petersson (6 January 1493 – 19 April 1552), better known under the Latin form of his name, Olaus Petri (or less commonly, Olavus Petri), was a clergyman, writer, judge, and major contributor to the Protestant Reformation in Sweden. His brother, Laurentius Petri (Lars Persson), became the first Evangelical Lutheran Archbishop of Sweden. Provided by Wikipedia