Website of the Orosa family of the province of Batangas in the Philippines. Origins can be traced back only to the generation of the siblings Guillermo, Basilio & Santiago who were born around the 1860's in the town of Taal in Batangas. Their parents are unknown and we are trying to establish links with other Orosas in Philippines. There are Orosas in at least two other Philippine provinces, Camarines Sur and Laguna. All these provinces are in Southern Luzon, the main island.