This German surname of AUMILLER was a locational name for a dweller on the water-meadow or pasture. 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. The name is also spelt AUMERLE. The first hereditary surnames on German soil are found in the second half of the 12th century, slightly later than in England and France. However, it was not until the 16th century that they became stabilized. The practice of adopting hereditary surnames began in the southern areas of Germany, and gradually spread northwards during the Middle Ages. The word Heraldry is derived from the German HEER, (a host, an army) and HELD, (champion): the term BLASON, by which the science is denoted in French, English, Italian and German, has most probably its origin in the German word 'BLAZEN' (to blow the horn). Whenever a new knight appeared at a Tournament, the herald sounded the trumpet, and as competitors attended with closed vizors, it was his duty to explain the bearing of the shield or coat-armour belonging to each. Thus, the knowledge of the various devices and symbols was called 'Heraldry'. The Germans transmitted the word to the French, and it reached England after the Norman Conquest of 1066. Over the centuries, most people in Europe have accepted their surname as a fact of life, as irrevocable as an act of God. However much the individual may have liked or disliked the surname, they were stuck with it, and people rarely changed them by personal choice. A more common form of variation was in fact involuntary, when an official change was made, in other words, a clerical error.