Siege of Osaka

The Siege of Osaka was a series of battles undertaken by the against the remnants of the, united under. The siege saw the destruction of the Toyotomi clan and, as a result, the last threat to the shogunate.

The Assassins, who supported the shogunate, helped ensure victory in the conflict. Hattori Masanari, son of Master Assassin Hattori Hanzō, fought valiantly during the Summer Campaign but was ultimately killed.

Reference

 * Assassin's Creed: Memories