Ecumenical (Heretical) Church Councils

1. The First General Council of Nicaea, 325
2. The First General Council of Constantinople, 381 
3. The General Council of Ephesus, 431
4. The General Council of Chalcedon, 451
5. The Second General Council of Constantinople, 553
6. The Third General Council of Constantinople, 680-681
7. The Second General Council of Nicaea, 787
8. The Fourth General Council of Constantinople, 869-70
9. The First General Council of the Lateran, 1123
10. The Second General Council of the Lateran, 1139
11. The Third General Council of the Lateran, 1179
12. The Fourth General Council of the Lateran, 1215
13. The First General Council of Lyons, 1245
14. The Second General Council of Lyons, 1274
15. The General Council of Vienne, 1311-12
16. The General Council of Constance, 1414-18
17. The General Council of Basel-Ferrara-Florence, 1431-45
18. The Fifth General Council of the Lateran, 1512-17
19. The General Council of Trent, 1545-63
20. The First General Council of the Vatican, 1869-70
21. Vatican II - 1962-1965