Nagasaka Nobumasa
Nobumasa served three generations of the Matsudaira/Tokugawa house - Kiyoyasu, Hirotada, and Ieyasu. Reknowned for his skill with a spear, he was a great warrior and nicknamed 'Bloody Spear Kurô' - supposedly slaying over 90 enemy warriors in his lifetime.
References
- Initial text from Sengoku Biographical Dictionary (Samurai-Archives.com) FWSeal & CEWest, 2005