The cathedral is commonly designated “the cradle of the Mark Brandenburg” for its historic significance.
Emperor Otto I founded the Diocese of Brandenburg here in 948 on top of an older Slavic fortress.
The building was planned as a single-nave, cross-shaped Romanesque Saalkirche made of brick.
[citation needed] The interior is characterized by white walls with accented red bands along arches, windows and ribbed vaults.
The wooden pulpit contains elaborate carvings with floral motifs and colored statues of Peter and Paul.
It can be dated to 1375 and is connected with the visit of Emperor Charles IV to Brandenburg, when he donated valuable relics to the cathedral.