Missionary Episcopate
Around 1003 Pope Sylvester II appointed Bruno to lead missions among the heathen peoples of eastern Europe, and in February 1004 Archbishop Tagino of Magdeburg consecrated him a missionary archbishop, bestowing the pallium. In this office he was charged not with a fixed see but with the conversion of peoples beyond the frontiers of Christendom.
He worked first in Hungary, where he sought to bring a local ruler named Ahtum (Achtum) into the Church's communion, and there completed his account of the life of Adalbert of Prague. Through the favor of Grand Prince Vladimir of Kiev he was then authorized to evangelize the Pechenegs, a Turkic people of the steppe between the Danube and the Don. By the sources he spent about five months among them, baptized roughly thirty adults, assisted in the making of peace, and consecrated a bishop to continue the work. In Poland he is also reported to have consecrated a bishop for Sweden.