He was the fifth son of [[Kaibara Kansai]]<!--貝原寛斎-->, a samurai in the service of [[Kuroda Mitsuyuki]], lord of [[Fukuoka han]]. Ekiken traveled to [[Kyoto]] to study, and returned to Fukuoka in [[1664]]. | He was the fifth son of [[Kaibara Kansai]]<!--貝原寛斎-->, a samurai in the service of [[Kuroda Mitsuyuki]], lord of [[Fukuoka han]]. Ekiken traveled to [[Kyoto]] to study, and returned to Fukuoka in [[1664]]. |