Complex sentence: The "Sol," or the King's closest female heir, she the King Aralbeth's daughter and shunned because of her foreign looks and the rumor that her mother was a witch who bespelled her father so she could bear an heir with noble blood.
Split into simpler sentences: The "Sol," or the King's closest female heir, she is King Aralbeth's daughter. Aerin is shunned because of her foreign looks and the rumor that her mother was a witch who bespelled her father so she could bear an heir with noble blood.