To the upper accounts by the historians were related the Vladimir the Great's conquest of the Cherven Cities in 981, and "Annales Hildesheimenses" note that Vladimir threatened to attack the Duke of Poland, Bolesław I the Brave (992 to 1025), in 992. Polish chronicler Wincenty Kadłubek in his "Chronica Polonorum" (12-13th century) recounted that Bolesław I the Brave conquered some ""Hunnos seu Hungaros, Cravatios et Mardos, gentem validam, suo mancipavit imperio"". The occurrence of the Croatian name among the people, and the fact during the period of Bolesław I the Brave the Polish realm expanded to the territory later-known as Lesser Poland, indicates that the mentioned Croats most probably lived on the territory of Lesser Poland.