A record of 1017 in Thietmar's Chronicle: “Caesar … comperit, Ruszorum regem… nilque ibi ad urbem possessam profecisse”,[2] that mentions Berestye as “urbs”.

A record of 1182 in the chronicle Chronica seu originale regum et principum Poloniae of the famous Polish chronicler Vincent Kadlubko narrates, that “Qui Russiam ingressus primam Brestensium urbem aggreditur; tam viris, quam arte ac loci situ munitissimam obsidionum undique arctat angustiis”.

There is a record in the Russian Primary Chronicle dating back to 1276 that narrates about the construction of a “grad” and a tower by Vladimir Vasilkovich.

In 1390, by the royal charter Władysław II Jagiełło, acting as a Grand Duke of Lithuania and King of Poland, granted Magdeburg rights to the city.

[5] It provides a detailed textual description and measurements of the castle that enables to study its location and spatial arrangement.

[6] Charles X Gustav of Sweden was aware of the key position of Brest and he ordered E.Dahlberg to design an impregnable fortified town.