https://www.thenagain.info/WebChron/WestEurope/OttoGreat.html
Otto the Great: 912-973
otto the great
https://www.livescience.com/otto-the-great-church-discovered.html
1,000-year-old church built by Otto the Great found in Saxony | Live Science
Jul 6, 2021 - Archaeologists searching for a royal palace in Germany have discovered a 1,000-year-old church constructed for Otto the Great (also called Otto 1).
otto the greatyear oldfound inlive sciencechurch