as the standard needed for election. Aeterni Patris Filius did not eliminate the possibility of election by acclamation, but did require that a secret ballot take place first before a pope could be elected. Electorate As early Christian communities emerged, they elected bishops, chosen by the clergy and laity with the assistance of the bishops of neighbouring dioceses. Cyprian (died 258) says that Pope Cornelius (in office 251–253) was chosen as Bishop of Rome "by the decree of God and of His Church, by the testimony of nearly all the clergy, by the college of aged bishops [sacerdotum], and of good men". As in other dioceses, the clergy of the Diocese of Rome was the electoral body for the Bishop of Rome. Instead of casting votes, the bishop was selected by general consensus or by acclamation. The candidate was then submitted to the people for their general approval or disapproval. This lack of precision in the election procedures occasionally gave rise to rival popes or antipopes. The right of the laity to reject the person elected was abolished by a synod held in the Lateran in 769, but restored to Roman noblemen by Pope Nicholas I during a synod of Rome in 862. The pope was also subjected to oaths of loyalty to the Holy Roman Emperor, who had the duty of providing security and public peace in Rome. A major change came in 1059, when Pope Nicholas II decreed in In Nomine Domini that the cardinals were to elect a candidate to take office after receiving the assent of the clergy and laity. The cardinal bishops were to meet first and discuss the candidates before summoning the cardinal priests and cardinal deacons for the actual vote. The Second Council of the Lateran in 1139 removed the requirement for obtaining the assent of the lower clergy and the laity, while the Third Council of the Lateran in 1179 gave equal rights to the entire College of Cardinals when electing a new pope. Through much of the Middle Ages and Renaissance the Catholic Church had only a small number of cardinals at any one time, as few as seven under either Pope Alexander IV (1254–1261) or Pope John XXI (1276–1277). The difficulty of travel further reduced the number arriving at conclaves. The small electorate magnified the significance of each vote and made it all but impossible to displace familial or political