Which saint is known as the 'Apostle of Germany'?

Which saint is known as the “Apostle of Germany”? Boniface is the canonical answer.

Boniface was an English Benedictine monk and missionary, born Wynfreth around 675. In the eighth century, he travelled through the Germanic regions of Francia, preaching Christianity and organizing church structures in areas that included modern Germany. His work involved founding and reforming monasteries, establishing dioceses, and strengthening ties between local churches and the papacy.

Boniface is especially associated with the Christianization of Hesse, Thuringia, and parts of Bavaria. Later tradition links him to the felling of a sacred oak at Geismar, an episode intended to demonstrate the powerlessness of pagan gods. The story is famous, though the surviving evidence for its details comes from medieval hagiography.

He became archbishop of Mainz and was martyred in Frisia in 754, reportedly alongside dozens of companions. His remains were taken to Fulda, which became a major pilgrimage center. Augustine of Canterbury was a missionary to Anglo-Saxon England, while Ansgar is associated chiefly with Scandinavia, making neither the canonical answer here.