The '' Klaus '' ( or '' yeshiva '' ) , Rosenwinkel 18 , was founded by Lehmann in a house near the synagogue and moved to its present location in the late 18th century . In the 19th century , as a rabbinical academy it became one of the strongholds of neo-orthodox Judaism . It survived '' Kristallnacht '' and the 1945 air raid and is now the seat of the '' Moses Mendelssohn Akademie '' . The academy offers information on Jewish life in the form of conferences , exhibitions and lectures . Its lecture hall is the former synagogue of the '' yeshiva ''
Kristallnacht
Kristallnacht
Issachar Berend Lehmann