During the Nara and Heian periods of Japanese history, the Fujiwara clan managed to establish a hereditary claim to the position of regent, either for an underage emperor (Sessho) or for an adult one (Kampaku). Some prominent Fujiwaras occupied these positions more than once, and for more than one emperor.
Yoshifusa (804-872) Sessho: (866-872)
Mototsune (836-891) Sessho: (873-880) Kampaku: (887-891)
Tadahira (880-949) Sessho: (930-941) Kampaku: (941-949)
Saneyori (900-970) Sessho: (969-970) Kampaku: (967-969)
Koretada (924-972) Sessho: (970-972)
Kanemichi (925-977) Kampaku: (973-977)
Yoritada (924-989) Kampaku: (977-986)
Kaneie (929-990) Sessho: (986-990) Kampaku: (990)
Michitaka (953-995) Sessho: (990-993) Kampaku: (993-995)
Michikane (961-995) Kampaku: (995)
Michinaga (966-1028) Sessho: (1016-1017) Kampaku: (996-1017)
Yorimichi (990-1074) Sessho: (1017-1020) Kampaku: (1020-1068)
Norimichi (997-1075) Kampaku: (1068-1075)
Morozane (1042-1101) Sessho: (1087-1091) Kampaku: (1075-1087), (1091-1094)
Moromichi (1062-1099) Kampaku: (1094-1099)
Tadazane (1078-1162) Sessho: (1107-1114), Kampaku: (1106-1107), (1114-1121)
Tadamichi (1097-1164) Sessho: (1123-1129), (1142-1151) Kampaku: (1121-1123), (1129-1142), (1151-1158)
Motozane (1143-1166) Sessho: (1165-1166) Kampaku: (1158-1165)
Motofusa (1144-1230) Sessho: (1166-1173) Kampaku: (1173-1179)
Moroie (1172-1238) Sessho: (1184
During the 13th century, the Fujiwara northern house was split into the five regnet houses (五摂家): Konoe, Takatsukasa, Kujo, Nijo and Ichijo. They monopolized the posts of Sessho and Kampaku in turn.
See also: shogun -- bakufu -- Cloistered rule -- History of Japan -- Lists of incumbents