This article contains spoilers for the following products: Dawn of the Scarlet Sun
From PathfinderWiki

Alignment Chaotic evil
Race/Species Half-elf
Class Cleric 5 / Rogue 1
Gender Female
Homeland Currently Magnimar
Deity Shax; formerly Sarenrae
Images of Zadendi

Source: Dawn of the Scarlet Sun, pg(s). 5

Zadendi was a cleric of Sarenrae visiting Magnimar when she was captured and dominated by the succubus Avalexi. She is now a willing cultist of Shax, working alongside Avalexi and her Scarlet Son.[1]