Yujo was from the Nijo family of court nobles, and he became a priest and disciple of a monzeki temple (a temple of high rank where members of imperial family and nobility enter the priesthood) and left a book called "Banshi" which kept a record of quotidian matters, in which Okyo's speech and behavior is described in detail and is regarded as a valuable record of the same period.
祐常は公家の二条家から門跡寺院に入って僧となった人物で、『萬誌』（ばんし）という日常雑事を記録した書物を残しているが、その中に応挙の言動が詳細に書き留められており、同時代の貴重な記録となっている。