Karo

Karō

... In the Edo period, the policy of sankin kōtai (alternate attendance)1 required each daimyo to place a karō in Edo and another in the home han (feudal domain) ... A karō who was in charge of a castle was called the jōdai karō (城代家老), while the one in Edo was called the Edo karō (江戸家老) ...