Being the first princess of Kievan Rus, Olga of Kyiv (920-969) also became the first inspiring woman in the history of Ukraine. The chroniclers sing the praises of her strong character and determination, which are evidenced by a range of events. Olga of Kyiv was a pioneer in a peaceful visit to the Byzantine Empire, thereby establishing an alliance with this powerful state. She also converted to Christianity, while her husband and son remained pagans. Yet her major merit was the rooting of the concept of law and creating regulations for tribute collection. Thus, during her rule, Kievan Rus became a prosperous state.