i Found a mention of Pir-Pahal in CHapter 14 of TJE
"Pir-Pahal, Achamian realized. The entire hall was dedicated to it, a great and ancient battle fought between Nonmen and Inchoroi. He could even recognize the principals: The traitor, Nin'Janjin, and his soverign, Cu'jara Cinmoi, the Nonman Emperor. The mighty hero, Gin'gurima, with arms like a man's thighs. And the Inchoroi King, Sil, armoured in courpses, flanked by his inhuman kinsmen, winged monstrosities with wicked limbs, pendulous phalli, and skulls grafted into skulls.
although not mentioned Cinial'jin was there at the battle and maybe sculpted into the wall, He's not a Nonman Akka knows.