In Belarusian-Lithuanian chronicles the town of Borisov is mentioned under the 1102 year. "In 1102 Prince Boris Vseslavich went to Yatvingians and beat them, after returning, put the town in his name ..."
Prince Boris (Rogvolod) was born probably in 1054. He was the son of Prince Vseslav Bryacheslavovicha (Sorcerer), Polotsk descendant of Rurik. Prince Boris was an active proponent of Orthodoxy, took care of spreading the Christian faith in the Polotsk land, even when a significant portion of people who have accepted the new faith, continued to worship the pagan idols. He was a devotee of the spiritual culture and literature. After his father's death in 1101 Boris took Polotsk throne. The activity of the prince is also associated epigraphy famous monuments - "Boris stones."
The monument to the founder of the city was set in the central square of Borisov in 2002, to the 900-th anniversary of Borisov.