León María Guerrero

León María Guerrero y Leogardo was a Filipino writer, revolutionary leader, politician, the first licensed pharmacist in the Philippines, and one of the most eminent botanists in the country during the late Spanish colonial period. He is considered to be the "Father of Philippine Pharmacy" due to his extensive studies on local medicinal plants. He is also dubbed as the "Father of Philippine Botany" by Filipino historian Gregorio F. Zaide.