The father of Wilhem Euler is Ulrich Euler, a Vesnian Guardsman and former Bannerman of the Draksovits. His mother died during childbirth, and at the age of 4 his father adopted a 6 year he would come to call Albrecht Euler. Despite not being blood relatives, Wilhelm cares deeply about his adoptive brother, and they would become inseparable very fast. He would rely on his older brother for help with everything he did. Soon however he would be forced to grow up in a different way. Taking up the trade of smithing, he discovered his passion and decided to forge his brother a blade for his 18th birthday. Very ornate, this blade showed off his aesthetical skill, as well as being honed to perfection. He separated from his brother at some point, thinking to strike out on his own as a blacksmith. After a while, though, he grew lonely and went to seek his brother in the Empire.
