After graduating from Military Academy and Army War College, Prince Tsunehisa pursued a career as a military officer, and became an army cavalry colonel and advanced to an army major general in 1920, but he died at the age of 38.
恒久王は、陸軍士官学校、陸軍大学校を卒業後、将校の道を歩み陸軍騎兵大佐を経て、1920年（大正8年）少将に進むが、38歳で死去。