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Christian feast day: Olaus and Laurentius Petri (Lutheran)

Historical image related to Christian feast day:
Olaus and Laurentius Petri (Lutheran) from April 19, null

Olaus Petri

Swedish clergyman and reformer (1493–1552)

Olof Persson, sometimes Petersson, better known under the Latin form of his name, Olaus Petri, was a clergyman, writer, judge, and major contributor to the Protestant Reformation in Sweden. His brother, Laurentius Petri, became the first Evangelical Lutheran Archbishop of Sweden.
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Laurentius Petri

Swedish clergyman (1499–1573)

Laurentius Petri Nericius was a Swedish clergyman and the first Evangelical Lutheran Archbishop of Sweden. He and his brother Olaus Petri are, together with the King Gustav Vasa, regarded as the main Lutheran reformers of Sweden. They are commemorated by the Evangelical Lutheran…
Source: Wikipedia (CC BY-SA)

Lutheranism

Major branch of Protestantism

Lutheranism is a major branch of Protestantism that emerged under the work of Martin Luther, the 16th-century German friar and reformer whose efforts to reform the theology and practices of the Catholic Church launched the Reformation in 1517. The Lutheran Churches adhere to the…
Source: Wikipedia (CC BY-SA)