Evolution of the Philippine flag - Page 7 of 10
On the battlefield, other Katipunero leaders used flags of their own.
General Mariano Lllanera and his men engaged the enemy in the provinces of Bulacan, Tarlac, Pampanga, and Nueva Ecija. General Llanera's flag was called Bungo ni Llanera, or Llanera's Skull. His flag was black, with the letter K shown next to a skull and crossbones.