Andrew I (died 28 June 1174), his Russian name in full, Andrey Yuryevich Bogolyubsky (, lit. Andrey Yuryevich of Bogolyubovo), was Grand prince of Vladimir-Suzdal from 1157 until his death. Andrey accompanied Yuri I Vladimirovich (Yury Dolgoruky), his father, on a conquest of Kiev, then led the devastation of the same city in 1169, and oversaw the elevation of Vladimir as the new capital of northeastern Rus'. He was canonized as a saint in the Russian Orthodox Church in 1702. Biography Andrey Bogolyubsky was born ca. 1111, to a daughter of Ayyub Khan, the Kipchak leader, and to Yuri I Vladimirovich (), commonly known as Yuri Dolgoruki (), a prince of the Rurik dynasty, who proclaimed Andrey a prince in Vyshgorod (near Kiev). Andrey left Vyshgorod in 1155 and moved to Vladimir. After his father's death in 1157, he became Knyaz (prince) of Vladimir, Rostov and Suzdal. He proceeded to attempt to unite Rus' lands under his authority, struggling persistently for submission of Novgorod to his authority, and conducting a complex military and diplomatic game in South Rus'. In 1162, Andrey sent an embassy to Constantinople, lobbying for a separate metropolitan see in Vladimir. In 1169 his troops sacked Kiev, devastating it as never before. After plundering the city, stealing much religious artwork, which included the Byzantine "Mother of God" icon. Andrey appointed his brother Gleb as prince of Kiev, in an attempt to unify his lands with Kiev. Following his brother's death in 1171, Andrey became embroiled in a two-year war to maintain control over Kiev, which ended in his defeat. Andrey established for himself the right to receive tribute from the populations of the Northern Dvina lands. As "ruler of all Suzdal land", Bogolyubsky transferred the capital to Vladimir, strengthened it, and constructed the Assumption Cathedral, the Church of the Intercession on the Nerl, and other churches and monasteries. Under his leadership Vladimir was much enlarged, and fortifications were built around the city. During Andrey's reign, the Vladimir-Suzdal principality achieved significant power—he "made Vladimir the centre of the grand principality"—and it became the strongest among the Kievan Rus principalities. The expansion of his princely authority, and his conflicts with the upper nobility, the boyars, gave rise to a conspiracy that resulted in Bogolyubsky's death on the night of 28–29 June 1174, when twenty of them burst into his chambers and slew him in his bed. As the Encyclopædia