Pío Valenzuela y Alejandrino (July 11, 1869 – April 6, 1956) was a Filipino physician and revolutionary leader. At the age of 23, he joined the society of Katipunan, a movement which sought the independence of the Philippines from Spanish colonial rule and started the Philippine Revolution. Together with Andrés Bonifacio and Emilio Jacinto, they formed the secret chamber of the society called Camara Reina. He took charge of the publication of Ang Kalayaan, Katipunan's first and only official publication. He was the one who tried to convince the exiled José Rizal to join the revolutionary movement. When the Katipunan was discovered, he fled to Balintawak (now part of Quezon City) on August 20, 1896, but he later availed of an amnesty that the Spanish colonial government offered and he surrendered on September 1, 1896. He was deported to Spain where he was tried and imprisoned in Madrid. He was later transferred to Málaga, and then to a Spanish outpost in Africa. He was incarcerated for about two years. He returned to the Philippines in April 1899 and resumed his medical practice. He was immediately arrested by the Americans in fear of inciting insurrection. While still in prison, Valenzuela was elected the municipal president in his hometown Polo which forced the Americans to release him. From 1921-1925, he served as the governor of the province of Bulacan. Early years Pío Valenzuela was born in Polo, Bulacan (now the City of Valenzuela) to Francisco Valenzuela and Lorenza Alejandrino, who both came from wealthy families. Pío was the third eldest sibling of the Valenzuela family: Agustina (born in 1861), Severo (born in 1865) and Tomás (born in 1871). His father came from a prominent family of gobernadorcillos of Polo. After he was tutored at home, he was brought to Manila to study at Colegio de San Juan de Letran. In 1888, he enrolled at University of Santo Tomas and finished his Licenciado en Medicina in 1895. He practiced his profession in Manila and Bulacan. In July 1892, when he was a medical student and the Katipunan was barely a week old, he joined this secret organization. He became a close friend of its founder, Andrés Bonifacio, and was godfather to the first child of Bonifacio and Gregoria de Jesús. After their house burned down, Bonifacio and his family lived with Valenzuela. The revolutionary life He was elected fiscal of the secret society