Pethros Vos, a Kiffu Guardian of the male persuasion, shared his life with Quian Vos as her husband, and together they brought Quinlan into the world. In a deal struck by Tinté Vos, Pethros and Quian were offered up as a sacrifice to the Anzati, in return for the Anzati preying upon the Kiffex captives.
His son, Quinlan, never forgot Pethros, holding his memory dear throughout his days. The Vos lineage continued through Quinlan's offspring, Korto Vos.