Selz Abbey or Seltz Abbey is a former monastery and Imperial abbey in Seltz, formerly Selz, in Alsace, France. The Benedictine monastery, dedicated to Saints Peter and Paul, was founded in about 991 by Adelheid, the second wife of Otto I and dowager empress, who was buried there on 16 December 999.. In January 992 it was granted royal tuitio and immunity (the equivalent of the later Reichsunmittelbarkeit) by Otto III. The church was almost destroyed during World War II; restoration was completed in 1958.