After his coming of age in 1572 and fighting his first battle in Kohoku, he engaged in consecutive battles in various places alongside his father Nobunaga in the Ishiyama War, the attack of Nagashima in Ise Province and the Battle of Nagashino.
元亀3年（1572年）に元服し、江北攻めで初陣して以来、信長に従って石山合戦、伊勢国長島攻め、長篠の戦いと各地を転戦する。