Si'morgh, spoken about in a conversation with the Phoenix, was the brother of the only living adult Phoenix found in Gielinor. According to the Phoenix's tale, she and Si'morgh both hatched when their parent died. Apparently, they lived together, until one day, when a dragon visited their cave. The dragon almost killed Si'morgh's sister, and Si'morgh protected her by giving his life to allow her time to escape. Apparently, Si'morgh's sister misses him greatly, but will tell players what happened to Si'morgh, if they ask her after getting a Phoenix egg.
- His name may be a reference to the Simurgh, a massive winged bird-like creature of Persian mythology.