Doi resigns his office, complaining that he is ill. Iemitsu assigns Matsudaira as Chief Chamberlain, Yagyu as Inspector General, and shuffles his cabinet to deal with his brother's potential attempt to seize the shogunate.
Doi steps down from his position, expressing dissatisfaction due to health issues. Iemitsu appoints Matsudaira as Chief Chamberlain, Yagyu as Inspector General, and reorganizes his cabinet in anticipation of his brother's possible bid to seize power.