After the Battle of Nagakute in April, the front line in northern Owari reached stalemate. At this time, Kanie Castle was located about three miles between Ieyasu's Kiyosu Castle and Nobuo's Nagashima Castle, and was connected to the Mie moat and three castles: Ono Castle, Shimoichiba Castle, and Maeda Castle. At that time, Kanie castle were facing the sea and was one of the leading ports in Owari, along with Atsuta and Tsushima. Then in June 18, Ieyasu and Nobuo led 20,000 soldiers and besieged three castles: Kanie Castle, Maeda Castle, and Shimoichiba Castle. The Kanie castle were defended by
Maeda Nagatane and
Takigawa Kazumasu. Meanwhile, the Oda-Tokugawa army were led by
Sakai Tadatsugu, Okanabe Mori, and Yamaguchi Shigemasa spearheading the attack towards Shimoichiba castle, while Sakakibara Yasumasa, Osuga Yasutaka were deployed to capture any fleeing defenders. Tanetoshi and Kazumasu withdraw from Ono castle and returning to Kanie castle. However, they came under siege from forces loyal to Oda Nobukatsu and
Sakakibara clan. The port of Kanie also blockaded as the
Hatamoto officers of Tokugawa such as
Mizuno Katsunari, who also hijacked two ships belonged to
Kuki Yoshitaka. On June 22, Oda Nobuo and Tokugawa Ieyasu launch an all-out attack on Kanie Castle. The soldiers led by Tadatsugu, who has been deployed at the major entrance, were exhausted after days of fierce fighting, and in the evening, the soldiers of Yasumasa Sakakibara and Ietada Matsudaira entered Kaimonjiguchi in their place. The Oda troops and their allies led by
Oda Nagamasu, broke through the outer defenses of Kanie castle, and negotiated that they retaken the castle and would not continue the attack on the condition that they gave Maeda Tanetoshi head. On June 23, Ieyasu entered the castle with Sakakibara Yasumasa, thus the castle were subdued. ==References==