noun
rear vassal; daimyo's retainer
Historical term from the Edo period and earlier, referring to a vassal who served a daimyo rather than the shogun directly. In the strict hierarchy, a 陪臣 was a retainer of a retainer.
江戸時代、陪臣は将軍に直接仕える旗本より下位とされた。
In the Edo period, rear vassals were considered lower in rank than hatamoto who served the shogun directly.
彼の先祖はある大名の陪臣だったらしい。
His ancestor seems to have been a retainer of a certain daimyo.