The Throne and the Lily

Alicent Hightower known as the queen of the seven kingdoms and the wife of Viserys Targaryen gave birth to a girl in 114 AC, Lilou was born with piercing green eyes and stark white hair mirroring a resemblance to her father. Unbeknownst to Viserys his wife had been sleeping with a member of the kings guard, the truth of Lilou not being Viserys daughter began to spread and threats were made to the family. After a near death experience Alicent decided it would be better to send Lilou with her sister in Essos, about 11 years later her sister passed during the birth of her second child. When the news reached Alicent she immediately left kings landing and set for Essos, Rhaenyra never had a chance to bond with her half siblings and wasn't about to lose that chance with her youngest sister. Cross posted on AO3 under Spencerslvr