Complex sentence: Also at the harbor is Heihachirou Tadakatsu Honda, a secret servant to Ieyasu Tokugawa, the future leader of Japan and master of the Dragonfly Slicing Spear.
Split into simpler sentences: Also at the harbor is Heihachirou Tadakatsu Honda, a secret servant to Ieyasu Tokugawa, the future leader of Japan. Heihachi is the master of the Dragonfly Slicing Spear.