Born in Greening of 590 of Laeva Lomasa and Rodan Nillu, Xerun was the oldest of five Nillu children. (On this very same day, Rodan made a formal alliance with his cousin, Sergei Nillu, and promised Xerun to Sergei's oldest son, Abrar. This would be the only arranged marriage for his children.) Some say personalities are determined by order of birth, and others say they are as random as can be. Either way, Xerun developed as the stereotypical older sister. When necessary, she played mother to her younger siblings and so learned a sense of responsibility and duty at a very young age. These two precious traits would carry her through her childhood and into her own life as a mother.