A landed lord who serves beneath the Shogun. They are ranked dependent upon their support for Tokugawa Ieyasu, the Shogun.
Those of the shinpan are direct relatives. They are on the councils who make policy for the country and have been given the rich central domains of the country.
The fudai are the clans that supported him prior to the Battle of Sekigahara. They were rewarded with some of the richest fiefdoms.
The last are the tozama. They are the clans that opposed Tokugawa and have been punished by being pushed to the poorest and most remote provinces.