100 Piso Mariano Ponce

Mariano Ponce was a propagandist and physician who wrote under the pen name "Naning" for La Solidaridad, the reform newspaper published in Barcelona that became the intellectual engine of the Philippine independence movement in the late 1880s and 1890s. He later pivoted from pen to logistics, attempting to procure arms from Japan for the revolutionary forces — a mission that ultimately failed when the ship carrying the weapons, the Nunobiki Maru, sank in a typhoon in 1899.