Santrapei, situated on the Inner Rim planet of Spirana, was the place of residence for Thren, the brother of New Republic pilot Yrica Quell. This location was situated three hundred kilometers to the east of the house shared by Yrica Quell and Chass na Chadic. Six years following the Battle of Jakku, Yrica Quell brought up Santrapei in conversation with Wyl Lark, a member of Alphabet Squadron, after he commented on her brandy, which had been a present from her brother.
The initial reference to Santrapei appeared in Victory's Price, a novel authored by Alexander Freed and published on March 2, 2021.