Boris and Gleb (, Borisŭ i Glěbŭ; , Boris i Gleb; , Borys i Hlib), Christian names Roman and David, respectively (, Romanŭ, Davydŭ), were the first saints canonized in Kievan Rus' after the Christianization of the country. Their feast day is observed on July 24 (August 6). History According to the two 11th-century Lives of Boris and Gleb (ascribed to Nestor the Chronicler and Jacob the Monk), they were younger children of Vladimir the Great, who favored them over his other children. The Primary Chronicle claims that their mother was a Bulgarian woman. Most modern scholars, however, argue that Boris and Gleb had different mothers and were of different ages. Boris, the elder, who was already married and ruled the town of Rostov, was probably regarded as heir apparent to the Kievan throne. Gleb, who was still a minor, ruled the easternmost town of Murom. Both brothers were murdered during the internecine wars of 1015–1019. The Primary Chronicle blames Sviatopolk the Accursed for plotting their assassinations. Boris learns of his father's death upon his return with the Rus' army to Alta. Informed of Sviatopolk's accession to the throne and urged to replace him, Boris replies: "Be it not for me to raise my hand against my elder brother. Now that my father has passed away, let him take the place of my father in my heart." Despite Boris' acquiescence, Sviatopolk sends Putsha and the boyars of Vyshegorod to execute his brother. Boris and his manservant are stabbed to death while asleep in a tent. The prince is discovered still breathing in a bodybag being transported to Kiev, but the Varangians end his life with the thrust of a sword. Sent for by Sviatopolk, Gleb believes his father is still alive and rushes to his father's deathbed. On the way, their brother Yaroslav learns of Sviatopolk's treachery and urges Gleb not to meet him. In the middle of praying to his deceased brother and God, Gleb is assassinated by his own cook, Torchin, who cuts his throat with a kitchen knife. The Life contains many picturesque details of Boris and Gleb's last hours, such as their sister's warning about the murderous plans of Sviatopolk. The narrative is a masterpiece of hagiography that weaves together numerous literary traditions. The factual circumstances of Boris and Gleb's lives and deaths cannot, however, be extrapolated from their hagiography. Perhaps the crucial evidence comes from