貞じょう観がんじょうがんMeanings1nounJōgan era (859-877)Historical Japanese era name (nengō) spanning from 859 to 877 CE.貞じょう観がん時じ代だいの仏ぶつ像ぞうは、密みっ教きょうの影えい響きょうを強つよく受うけている。Buddhist statues from the Jōgan era are strongly influenced by esoteric Buddhism.
