User blog comment:CoolJazzman/Ywach, could he be the first Quincy?/@comment-5551986-20130417191601/@comment-8295743-20130422071046

In the South, it's common for older men(and sometimes women) to call younger men "son". Means nothing. I agree that Yhwach is...different. It's possible humans won't age in the Land of the Dead, however it is also highly likely that Yhwach is no longer human. He somehow escaped death by Yamamoto a thousand years ago, and escaped the Quincy Extermination two hundred years ago. He had to have been hiding in Hueco Mundo the entire team. I have no explanation for the other Vandenreich, the Ishida Clan were supposed to the last of the Quinces. I can understand Soul Society not knowing that a few may have survived, but I would think the Ishida would have.