Some historians in the 19th century considered that Tomislav and Svatopluk were in fact the same person, or that the author mistakenly wrote the wrong name of the King.
19世紀の歴史家はトミスラヴとスヴァトプルクは同一人物であるか、もしくは著者が不注意で王の名前を誤って記したと考えていた。