Though the "DAI" asserts that already during the reign of Emperor Heraclius the Serbs were Christianized and that the process was performed by the priests from Rome, it took some time before the new religion spread through the entire population. Other reports confirm that the church missionary activities were organized among the South Slavs already from the late 7th and mid-8th century. The process was mostly finished by the mid-9th century which is when the first Christian names appear among the Serbs. Prince Mutimir, who ruled c. 850-891 named his son Stefan Mutimirović, while his nephew was named Petar Gojniković. Serbs who were relocated to Gordoserba in the Asia Minor were probably already Christianized by the end of the 7th century, as they had their bishop and were presumably part of the army of "selected peoples" (Christians) in 692.