Cosmas describes the manner of the first inhabitants of Bohemia, who at first lived very simply and did not know alcohol, marriages, private property or weapons.
So, Krok rose amongst the people; he was described by Cosmas as "a man known for his age, absolutely perfect, rich and worldly in his judgements, and sophisticated.
He writes that when Čech died he tried to pass the leading of the Czech people to his brother Lech, who refused, and recommended Krok in his place.
According to postulation by Vladimír Karbusický,[2] Cosmas likely contrived them when trying to read a lost Latin transcription of an old-Slavonic message.
[3] When the ancestral names are combined and reassessed, they can roughly cohere an assumed text: "Krok‘ kazi tetha lubossa premisl nezamisl mna ta voj‘n ni zla kr‘z mis neklan gosti vit..." In modern English, this may translate to: "Halt your steps, Tetha, and rather think, I do not intend war or evil upon you, we do not bow to the cross, we welcome guests..." The alleged message is speculated to be from the Czech princes to the Franks, perhaps in relation to the Battle of Zásek c. 849 described in the Annales Fuldenses.