This document summarizes the customs of the Tagalog people in the Philippines as recorded by Spanish chroniclers in the 16th and 17th centuries. It describes the tribal system of barangays where chiefs helped one another in wars. Society was divided into nobles, commoners, and slaves. Inheritance and marriage customs are detailed, including the division of dowries. The religious practices of the Tagalogs are also outlined, such as their worship in simbahan temples led by the officiating priest Catalonan. Various devil priests and their supernatural powers are named and defined.