Ogasawara school of etiquette
Refers specifically to the Ogasawara family's tradition of formal manners and ceremonial etiquette. Often used in contexts of traditional Japanese culture.
She is learning the etiquette of the Ogasawara school.
punctilious etiquette
By extension, used colloquially to refer to extremely strict or formal manners, not necessarily limited to the actual Ogasawara school.
You don't need that kind of punctilious greeting in an ordinary company.
Ogasawara school of archery
Refers to the Ogasawara tradition of archery, including horseback archery (yabusame). A historical martial art.
The Ogasawara school's yabusame is a traditional event dating back to the Kamakura period.
Ogasawara school of military strategy
Historical school of military strategy founded by the Ogasawara clan. Rarely used in modern contexts except in historical discussions.
The Ogasawara school was also known for its samurai military tactics.