In his letter "Quia te zelo", the pope addressed Svatopluk as "rex Sclavorum" ("king of the Slavs"). Although Svatopluk's royal title was not recognized by the contemporary "Annals of Fulda", the chronicler Regino of Prüm also referred to Svatopluk as "rex Marahensium Sclavorum" ("king of the Moravian Slavs") in the early 10th century, which is independent evidence confirming that Svatopluk held the title of king. According to the late 12th-century "Chronicle of the Priest of Duklja", Svatopluk had been crowned "king in the Roman fashion on the field of Dalma" in the presence of a papal legate, cardinals, and bishops.