The CALABARZON Region, Philippines A region known as “Southern Tagalog,” once stretched north from Aurora all the way to Palawan in the southwest, including the islands of Mindoro, Marinduque, and Romblon. Historically, the region girdled the island of Luzon, was the country’s largest region, in terms of land area, and boasted the greatest population. However, by 2002, Southern Tagalog was...