Noble Erchana of Dahauua grants the Bavarian town of Dachau to the Diocese of Freising

Bavaria, officially the Free State of Bavaria, is a state in the southeast of Germany. With an area of 70,550.19 km² (27,239.58 sq mi), it is the largest German state by land area, comprising approximately 1/5 of the total land area of Germany, and with over 13.08 million inhabitants, it is the second most populous German state, behind only North Rhine-Westphalia; however, due to its large land area, its population density is below the German average. Major cities include Munich, Nuremberg, and Augsburg.

Dachau is a town in the Upper Bavaria district of Bavaria, a state in the southern part of Germany. It is a major district town—a Große Kreisstadt—of the administrative region of Upper Bavaria, about 20 kilometres north-west of Munich. It is now a popular residential area for people working in Munich, with roughly 45,000 inhabitants. The historic centre of town with its 18th-century castle is situated on an elevation and visible over a great distance.

The Archdiocese of Munich and Freising is a Latin Church ecclesiastical territory or diocese of the Catholic Church in Bavaria, Germany. It is governed by the Archbishop of Munich and Freising, who administers the see from the co-cathedral in Munich, the Frauenkirche. The other, much older co-cathedral is Freising Cathedral.