This is a list of the top-level leaders for religious groups with at least 50,000 adherents, and that led anytime from January 1, 1001, to December 31, 1100. It should likewise only name leaders listed on other articles and lists.
Church of Rome (complete list) –
Sylvester II, Pope (999–1003)
John XVII, Pope (1003)
John XVIII, Pope (1003–1009)
Sergius IV, Pope (1009–1012)
Benedict VIII, Pope (1012–1024)
John XIX, Pope (1024–1032)
Benedict IX, Pope (1032–1044, 1045, 1047–1048)
Sylvester III, Pope (1056–1062)
Benedict IX, Pope (1032–1044, 1045, 1047–1048)
Gregory VI, Pope (1045–1046)
Clement II, Pope (1046–1047)
Benedict IX, Pope (1032–1044, 1045, 1047–1048)
Damasus II, Pope (1048)
Leo IX, Pope (1049–1054)
Victor II, Pope (1055–1057)
Stephen IX, Pope (1057–1058)
Nicholas II, Pope (1059–1061)
Alexander II, Pope (1061–1073)
Gregory VII, Pope (1073–1085)
Victor III, Pope (1086–1087)
Urban II, Pope (1088–1099)
Paschal II, Pope (1099–1118)
Church of Constantinople (complete list) –
Sergius II, Ecumenical Patriarch of Constantinople (1001–1019)
Eustathius, Ecumenical Patriarch of Constantinople (1019–1025)
Alexius I the Studite, Ecumenical Patriarch of Constantinople (1025–1043)
Michael I Cerularius, Patriarch of Constantinople (1043–1058)
The first among equals in Eastern Orthodoxy after the East–West Schism of 1054
Constantine III Leichoudes, Ecumenical Patriarch of Constantinople (1059–1063)
John VIII Xiphilinos, Ecumenical Patriarch of Constantinople (1064–1075)
Kosmas I, Ecumenical Patriarch of Constantinople (1075–1081)
Eustratius Garidas, Ecumenical Patriarch of Constantinople (1081–1084)
Nicholas III Grammaticus, Ecumenical Patriarch of Constantinople (1084–1111)
List of 11th-century religious leaders Wikipedia (Text) CC BY-SA