A series of councils were held in 657 , 669 , 846 , 850 , 852 , 853 , 862 , 980 , 986 , 996 , 1048 , 1071 and 1080 .
when was something held _ _ _ ?
in 657 , 669 , 846 , 850 , 852 , 853 , 862 , 980 , 986 , 996 , 1048 , 1071 and 1080