Ludger, Frisian missionary

Ludger was a missionary among the Frisians and Saxons, founder of Werden Abbey and the first Bishop of Münster in Westphalia. He has been called the "Apostle of Saxony".

A missionary is a member of a religious group who is sent into an area in order to promote its faith or provide services to people, such as education, literacy, social justice, health care, and economic development.