The Han were the feudal clans of Japan that existed before the Meiji reformation, when they were disbanded in favor of the formation of prefectures. They were traditionally led by a daimyo.
... "they are in me".
"-aham" (I) in the second line is nominative. na caaham =
"...and not I....", meaning "but I am not...".
"teshv-" (in/at/by them) at the end ...