Morong was an administrative division of the Philippines that existed as a politico-military district created out of parts of the provinces of Tondo and Laguna on February 23, 1853, by a decree of the Superior Gobierno, composing Morong, Pililla, Tanay, Baras, Binangonan, Jalajala, Angono and Cardona from Laguna; and Antipolo, Boso-Boso, Cainta and Taytay from Tondo. Wikipedia