I can't believe these stories - Royce is 51 years old, he must have been a black belt for 30+ years, spent his entire life doing nothing but fighting / training / coaching, his formative years spent rolling with the likes of Rickson and Royler - even if he was the slowest leaner ever, he would be significantly better than purple belt.
Anyone that says Royce is purple belt level just isn't thinking about this logically - even if he doesn't play the modern style of BJJ, even if he doesn't have a long list of competitive accolades, even if he getting on in age, even if he isn't a great athlete - he has to be at minimum a peg above your average hobby black belt.