Yagyu

[Taisaburo]

Shinkage-ryu is Shinkage-ryu.

Yagyu Shingan-ryu is Yagyu Shingan-ryu.

That's it, no collective.

Collectively as a School. That being a school of military arts (Heiho) which Yagyu Shinkage ryu was. Hence, Yagyu Shinkage ryu Heiho, go look at the schools website which will soldify my statement.

[Hisham]

While surfing the net i found out about whom was the founder of the Kage ryu which Nobutsuna studied, the website is in french.
The founder's name is Aizu Hyuga no Kami Iko (1452-1538) according to the website his ryu was called Aizu Kage ryu many schools stemed from this one.
Anybody who can confirm this information would be much apreciated.

[Oukaranman]

Tajima no kami Munenori (1571-1646) was a historical swordsman who inherited the school of swordsmanship called Yagyu Shinkage Ryu from his father Yagyu Sekishusai Muneyoshi. This was the official tradition taught under the Tokugawa shogunate of Japan in the Edo period. Munenori was a hatamoto, a direct retainer of the Tokugawa house, and was later made a minor daimyo. He is known to have taught sword fighting to Tokugawa Ieyasu's son, Tokugawa Hidetada.
Munenori's sons, Yagyu Jubei and Yagyu Munefuyu, were also famous swordsmen.
Japanese television actor and personality Hiroshi Yagyu and his son Shingo Yagyu are descendants of Yagyu Munenori.

[Philippe]

While surfing the net i found out about whom was the founder of the Kage ryu which Nobutsuna studied, the website is in french.
The founder's name is Aizu Hyuga no Kami Iko (1452-1538) according to the website his ryu was called Aizu Kage ryu many schools stemed from this one.
Anybody who can confirm this information would be much apreciated.

Meant to reply earlier, but life interfered.

The Kage-ryū (陰流) was founded by Aisu Ikōsai Hisatada, also known as Hyūga-no-kami and Aisu Iko. Kamiizumi Ise-no-kami Nobutsuna is traditionally said to have learnt the Kage-ryū directly from its founder, but given the age differences, it seems more likely that he learnt it from Aisu Ikōsai's son, Aisu Koshichirō Munemichi. Before learning the Kage-ryū, Nobutsuna has also studied the Nen-ryū and the Shinto-ryū. He then went on to found the Shinkage-ryū (新陰流), from which several schools were developed, either directly, or through one of the schools of Nobutsuna's Shinkage-ryū.

Of course, the most famous descendant of the initial Shinkage-ryū is the Yagyū Shinkage-ryū (柳生新陰流) founded by Yagyū Sekishūsai Muneyoshi. That school split into the Edo branch　(江戸柳生), which kept the Yagyū Shinkage-ryū name and was headed by Sekishūsai's son Munenori and the Owari Yagyū-ryū (尾張柳生流), under Yagyū Hyōgonosuke Toshiyoshi, Sekishūsai's grandson (Munenori's nephew).

Finally, the Yagyū Shingan-ryū (柳生心眼流) is a jūjutsu style, which gets the Yagyū name because its founder, Takenaga Hayato was granted permission to use the name by Munenori. Hayato did study the Shinkage-ryū under Munenori and it is believed that he developed his jūjutsu system after completing said studies, it is possible that the Yagyū Shinkage-ryū had some influence on the Yagyū Shingan-ryū.

All of the above, of course, means that saying only Yagyū-ryū can be very confusing, as it could serve as an abbreviation for any of the above. In context, however, it's usually clear enough.

[Hisham]

Thank you for the reply Philippe.