In this Japanese name, the family name is Ikeda.
Ikeda Motosuke (池田 元助, 1559 – May 18, 1584) was a samurai commander in the Sengoku period. He was the first son of Ikeda Tsuneoki. His young brother was Ikeda Terumasa.
He served Oda Nobunaga in his early years. In 1579, since he was active in beating Araki Murashige with his brother, Terumasa, and Nobunaga praised them for their efforts. In 1582, he served Hashiba Hideyoshi after Nobunaga died at the Incident at Honnō-ji. In 1584, he led the force that invaded Mikawa Province during the Battle of Komaki and Nagakute. However, he was repelled by Tokugawa Ieyasu's force, and died in the battle.
The original article can be found at Ikeda Motosuke and the edit history here.