The lord of Mouri-Han sometimes made the tour of inspection in Edo era. Through the examination of historical materials on these tours, the following results are ascertained. (1) The castles of chief vassal were used as a lodging by the lord. (2) The castle of chief vassal was composed of public rooms and private rooms ordinarily. But when it was used as a lodging, public rooms were used as the dwelling of the lord and followers. (3) Some castles had an independent private room for the lord and the other had not.
