Węgorzewo
Węgorzewo lies on the Angrapa near Lake Mamry. Its earlier name, Angerburg, referred to eels and to a Teutonic stronghold recorded in 1335. Kęstutis destroyed the wooden fortress in 1365, but the Order later rebuilt it in stone. Settlement around the castle increased toward the end of the fifteenth century, and a mill dam altered the waters flowing from Lake Mamry. Under the Duchy of Prussia, the place became a district seat and received town rights in 1571. Fire destroyed much of it in 1608.