When Ryogen became Tendai-zasu, Enryaku-ji Temple was devastated as it had lost many doto (temple halls and towers) including Konpon-chudo Hall, due to the big fire that broke out in 935.
延暦寺には承平(日本)5年（935年）に大規模な火災があり、根本中堂をはじめとする多くの堂塔を失い、荒廃していた。