Ii Naomasa was one of Tokugawa Ieyasu's most trusted Four Generals, and was made daimyō of Hikone Domain, with revenues of 180,000 koku.
As a reward, Tokugawa Ieyasu gave Hikone to Naokatsu, and reassigned his elder brother to the much smaller holding (30,000 koku) of Annaka in 1615.
His son, Itakura Shigeatsu was reassigned to Izumi Domain in Mutsu Province in 1702, exchanging places with Naitō Masamori.
[3] Neeshima's grandfather was formerly Shugen mystic, and, expected to utilize his knowledge by the ruler of those days Katsunao, later became a lower-ranked feudal retainer of Annaka Domain.
[2] Katsuakira, being an exemplary political figure of early Bakumatsu-era, having antiforeignism and chauvinism, and taking Japan's situation seriously,[4] encouraged new industry in his domain[1] and conducted military trainings, for example: Ansei Toashi.
During the Boshin War, the final daimyo, Itakura Katsumasa was assigned by Shōgun Tokugawa Yoshinobu to hold the Usui Pass against the armies of the Satchō Alliance, but he quickly capitulated to the imperial forces.