Following the deaths of his father and elder brother in the Osaka Summer Campaign, his holdings were transferred from
Akashi Domain (100,000
koku) in
Harima Province to the
Kokura Domain (150,000
koku)
Buzen Province. Famed as the lord who employed
Miyamoto Musashi's adopted son Iori, Tadazane took part in the Shogunate's campaign to quell the
Shimabara Rebellion, where the Kokura forces assisted in the execution of survivors of the rebel force, predominantly
Christians. Tadazane's son Tadataka succeeded him. Other children included Nagayasu, Naganobu, Sanekata, and three daughters (one of them adopted from the
Hachisuka clan of
Tokushima-han). ==See also==