"Apostle of Germany" refers to St. Boniface - the English missionary and bishop who devoted himself to the evangelization of Germanic peoples in the 8th century. However, there are several alternative terms that can be used to describe St. Boniface's role in spreading Christianity across Germany. One such term is "The Bishop of Mainz," which refers to the fact that St. Boniface was appointed as the Archbishop of Mainz in 746. Another synonym is "The Father of the German Church," which further emphasizes St. Boniface's role in establishing a vibrant Christian community in Germany. Other alternatives include "The Patron Saint of Germany," "The Apostle of the Saxons," and "The Great Missionary of Germany."".