It happens in many walks of life: someone isn't famous, but has a sibling who is. In wulin, it's not different. Everybody knows whom West Poison Au Yeung Fung is, but who knows/remembers the name or accomplishments of his older brother, whom most people thought to be the father of Au Yeung Hak? Similarly, we know that Ohr Jen Ngok was the leader of the Gong Nam 7 Freaks and one of Gwok Jing's teachers, but how much do we know about OJN's older brother, Ohr Pik Che, who evidently had a wulin career of his own, but about which we know so little?