Gregorio del Pilar (November 14, 1875—December 2, 1899) was the youngest and the most picturesque general in the Philippine Revolutionary Forces during the Philippine Revolution and the Philippine-American War. He was called the "boy general" because of his youth.
He was born on November 14, 1875 to Fernando H. del Pilar and Felipa Sempio of Barangay San Jose, Bulacan, Bulacan. He was the nephew of propagandist Marcelo H. del Pilar and Toribio del Pilar, who was exiled to Guam for his involvement in the 1872 Cavite Mutiny.
"Goyong", as he was casually known, enrolled at the Ateneo Municipal de Manila where he finished his Bachelor’s degree in 1896, at the age of 20. When the Philippine Revolution against Spanish rule broke out in August under the leadership of Andres Bonifacio, Del Pilar decided to join the movement. He distinguished himself as a field commander while fighting Spanish garrisons in Bulacan.
He then joined General Emilio Aguinaldo, who had gained control of the movement, in Hong Kong after the Truce at Biak-na-Bato. Upon resuming control of the Philippine Revolution, Gen. Aguinaldo appointed Del Pilar to lead the revolutionary forces in Bulacan and Nueva Ecija. On June 1, Del Pilar landed in Bulacan with rifles purchased in Hong Kong, quickly laying siege on the Spanish forces in the province. When the Spaniards surrendered to Del Pilar, he brought his troops to Caloocan and Manila to support the other troops battling the Spaniards there.