Svatopluk"a man most prudent among his people and very cunning by nature", according to Regino of Prümdied in the summer of 894. He was succeeded by his son, Mojmir II, but his empire shortly disintegrated, because the tribes subjugated to Svatopluk's rule by force started to get rid of Moravian supremacy. For instance, the Bohemian dukes (based in the Prague region) accepted King Arnulf's suzerainty in June 895, and Mojmír II attempted to restore his supremacy over them without success in the next two years. On the other hand, he succeeded in restoring the Church organization in Moravia by persuading Pope John IX (r. 898–900) to send his legates to Moravia in 898. The legates in short order installed an archbishop and "three bishops as his suffragans" in Moravia.