Originally the chapel of the von Oertzen family was located beneath the window. The only things remaining from it are the chapel window sponsored by the von Oertzen family, to the left a medieval tomb stone of one of the family of von Oertzen and to the right the memorial plaque for Siegfried (died 1441) and Hermann von Oertzen (died 1386) with the inscription: “In the year of our Lord 1441 on the 11th day of July Siegfried von Oertzen passed away in the holy land and is buried on Mount Zion. In the year of our Lord 1386, the knight Hermann von Oertzen passed away.”