SIEGFRIED formed
?. Vo & / G. Hiroshi Kano (菅野博) / G. Kensaku Ikuta (生田健作) / B. Tatsuhiro Matsuki (松木達裕) / D. Takao Seki (菅野博)
Gt. Kensaku Ikuta (生田健作) & Ba. Tatsuhiro Matsuki (松木達裕) secedes
Gt. Kenichiro Tsutumi (堤健一郎) & Ba. Yutaka Umezu (梅津豊) join the band
?. Vo & / G. Hiroshi Kano (菅野博) / G. Kenichiro Tsutumi (堤健一郎) / B. Yutaka Umezu (梅津豊) / D. Takao Seki (菅野博)
Gt. Kenichiro Tsutumi (堤健一郎) secedes
Ba. Yutaka Umezu (梅津豊) secedes
Vo & Gt. Hiroshi Kano (菅野博) secedes & Ba. Tatsuhiro Matsuki (松木達裕) rejoin the band
Ba. Yutaka Umezu (梅津豊) rejoin the band but how guitarist
Gt. Takeshi Sato (斎藤武史) join the band
G. Takeshi Sato (斎藤武史) / G. Yutaka Umezu (梅津豊) / B. Tatsuhiro Matsuki (松木達裕) / D. Takao Seki (菅野博)
Ba. Tatsuhiro Matsuki (松木達裕) secedes again
G. Takeshi Sato (斎藤武史) / G. Yutaka Umezu (梅津豊) / D. Takao Seki (菅野博)
Vo. Mayumi Yoshida (吉田まゆみ) & Ba. Hiroyuki Nitta (新田洋之) join the band
V. Mayumi Yoshida (吉田まゆみ) / G. Takeshi Sato (斎藤武史) / G. Yutaka Umezu (梅津豊) / B. Hiroyuki Nitta (新田洋之) / D. Takao Seki (菅野博)
Ba. Hiroyuki Nitta (新田洋之) secedes
Gt. Takeshi Sato (斎藤武史) secedes
Ba. Katsunori Sudo (須藤勝則) join the band
V. Mayumi Yoshida (吉田まゆみ) / G. Yutaka Umezu (梅津豊) / B. Katsunori Sudo (須藤勝則) / D. Takao Seki (菅野博)
Ba. Katsunori Sudo (須藤勝則) & Vo. Mayumi Yoshida (吉田まゆみ) secedes
Ba. Sr. Matsubaguchi (松葉口氏) join the band & Gt. Yutaka Umezu (梅津豊) secedes
Ba. Sr. Matsubaguchi (松葉口氏) secedes
Vo. Makoto Imada (今田真), Ba. Akihiro Katayama (片山昭裕), Key. Michiyo Higuchi (樋口美千代) join the band & Gt. Takeshi Sato (斎藤武史) rejoin the band
V. Makoto Imada (今田真) / G. Takeshi Sato (斎藤武史) / B. Akihiro Katayama (片山昭裕) / D. Takao Seki (菅野博) / K. Michiyo Higuchi (樋口美千代)
Vo. Makoto Imada (今田真) & Ba. Akihiro Katayama (片山昭裕) secedes
G. Takeshi Sato (斎藤武史) / D. Takao Seki (菅野博) / K. Michiyo Higuchi (樋口美千代)
Vo. Atsushi Shibuya (渋谷淳) & Ba. Shinichi Utsumi (内海伸一) join the band
V. Atsushi Shibuya (渋谷淳) / G. Takeshi Sato (斎藤武史) / B. Shinichi Utsumi (内海伸一) / D. Takao Seki (菅野博) / K. Michiyo Higuchi (樋口美千代)
Apparently between some time in 1986, Yuji (TERRY) joined the band but it is not very clear (?)
Vo. Atsushi Shibuya (渋谷淳) & Key. Michiyo Higuchi (樋口美千代) secedes
Gt. Takeshi Sato (斎藤武史) secedes
Ba. Shinichi Utsumi (内海伸一) secedes
Dr. Takao Seki (菅野博) secedes & SIEGFRIED disbands
SIEGFRIED revives
Vo. Sr. Ichikawa (石川氏) & Key. Akiko Yokohashi join the band & Takeshi Sato (斎藤武史), Shinichi Utsumi (内海伸一) & Takao Seki (菅野博) rejoin the band
V. Sr. Ichikawa (石川氏) / G. Takeshi Sato (斎藤武史) / B. Shinichi Utsumi (内海伸一) / D. Takao Seki (菅野博) / K. Akiko Yokohashi (横橋明子)
Dr. Takao Seki (菅野博) fired all member
SIEGFRIED disbands again
SIEGFRIED revives again
Vo. Yu Ogawa (小川優), Gt. Yoshiteru Yokoyama (横山喜照) & Ba. Shuzo Tagaki (高木修三) join the band
V. Yu Ogawa (小川優) / G. Yoshiteru Yokoyama (横山喜照) / B. Shuzo Tagaki (高木修三) / D. Takao Seki (菅野博)
Gt. Yoshiteru Yokoyama (横山喜照) secedes & Hitoshi Konishi (小西斉) join the band
V. Yu Ogawa (小川優) / G. Hitoshi Konishi (小西斉) / B. Shuzo Tagaki (高木修三) / D. Takao Seki (菅野博)
Gt. Hitoshi Konishi (小西斉) secedes & Yoshiteru Yokoyama (横山喜照) rejoin the band but Hitoshi rejoin again
V. Yu Ogawa (小川優) / G. Yoshiteru Yokoyama (横山喜照) / Support B. Shuzo Tagaki (高木修三) / D. Takao Seki (菅野博)
↓
V. Takao Suda (須田高雄) / G. Hitoshi Konishi (小西斉) / Support B. Shuzo Tagaki (高木修三) / D. Takao Seki (菅野博)
Ba. Shuzo Tagaki (高木修三) ends support & Megumi Kobayashi (小林恵) join the band
V. Takao Suda (須田高雄) / G. Hitoshi Konishi (小西斉) / B. Megumi Kobayashi (小林恵) / D. Takao Seki (菅野博)
Vo.Takao Suda (須田高雄) secedes & Satoko Seki (関聡子) join the band
V. Satoko Seki (関聡子) / G. Hitoshi Konishi (小西斉) / B. Megumi Kobayashi (小林恵) / D. Takao Seki (菅野博)
Gt. Hitoshi Konishi (小西斉) & Ba. Megumi Kobayashi (小林恵) secedes
Gt. Masaki Takaguchi (田口正樹) & Ba. Shuzo Takagi (高木修三) join the band
V. Satoko Seki (関聡子) / G. Masaki Takaguchi (田口正樹) / B. Shuzo Takagi (高木修三) / D. Takao Seki (菅野博)
Vo. Satoko Seki (関聡子) secedes & Araki Mai (荒木真為) join the band
V. Araki Mai (荒木真為) / G. Masaki Takaguchi (田口正樹) / B. Shuzo Takagi (高木修三) / D. Takao Seki (菅野博)
Key. Eiki Yasuda (保田英器) join the band
V. Araki Mai (荒木真為) / G. Masaki Takaguchi (田口正樹) / B. Shuzo Takagi (高木修三) / D. Takao Seki (菅野博) / K. Eiki Yasuda (保田英器)
Vo. Arakai Mai (荒木真為) secedes & Sugino (杉乃) join the band
V. Sugino (杉乃) / G. Masaki Takaguchi (田口正樹) / B. Shuzo Takagi (高木修三) / D. Takao Seki (菅野博) / K. Eiki Yasuda (保田英器)
Vo Sugino (Sugino (杉乃) secedes & Eiki Yasuda (保田英器) paused activities with the band
G. Masaki Takaguchi (田口正樹) / B. Shuzo Takagi (高木修三) / D. Takao Seki (菅野博)
Vo. Takako Asakura (朝倉貴子) join the band
V. Takako Asakura (朝倉貴子) / G. Masaki Takaguchi (田口正樹) / B. Shuzo Takagi (高木修三) / D. Takao Seki (菅野博)
Key Eiki Yasuda (保田英器) resume activities with the band
V. Takako Asakura (朝倉貴子) / G. Masaki Takaguchi (田口正樹) / B. Shuzo Takagi (高木修三) / D. Takao Seki (菅野博) / ?. Key Eiki Yasuda (保田英器)
SIEGFRIED paused activities