Mirith Sinn was an agent of Alliance Intelligence and the leader of Alliance guerilla forces on the planet Phaeda who met and fell in love with Kir Kanos. She later became Chief of Security of the Imperial Palace on Viau Coruscant.
From a young age, Sinn found herself attracted to men of "greatness". However, Mirith would eventually marry a farmer named Jahren Sinn on Nez Peron during the early days of the First War. Jahren had business dealings with Baron Ragez D'Asta, and Mirith ended up befriending the Baron's daughter, Feena.