This surname ARAUJO was a Portugese and Spanish habitation name from any of various minor places so called, for example in Coimbra, Elvas, Estremoz, Lisbon, Moncorvo, Monsao, Serpa, Setubal and Villa Verde. In Spain the name is also relatively common in the same form. Portugese surnames share many of the features of Spanish surnames, in particular Arabic and Visigothic influence. A notable feature of Portugese surnames is the class of religious names referring to festivals of the church or attributes of the Virgin Mary. One respect in which Portugese names differ from those of the rest of the Iberian peninsular, is that some were adopted at a comparatively late date and honour saints who did not give rise to surnames in other languages. Portugese names typically have the ending 'eiro'. Surnames derived from placenames are divided into two broad categories; topographic names and habitation names. Topographic names are derived from general descriptive references to someone who lived near a physical feature such as an oak tree, a hill, a stream or a church. Habitation names are derived from pre-existing names denoting towns, villages and farmsteads. Other classes of local names include those derived from the names of rivers, individual houses with signs on them, regions and whole countries. In the Middle Ages heraldry came into use as a practical matter. It originated in the devices used to distinguish the armoured warriors in tournament and war, and was also placed on seals as marks of identity. As far as records show, true heraldry began in the middle of the 12th century, and appeared almost simultaneously in several countries of Western Europe.