Having Tankred as your grandpa must be fucking awesome.
Sure, taking him out for a walk might end up with tons of dead people if they give him shit, and tons of criminal charges arrayed againts him, but who's gonna really try to prosecute him?
Plus, I'm sure you'll eventually get tired of listening Imperial Propaganda from him, not to mention endless
"Well, boy, back in 40678, that's 1957, for you youngin'...me and my brethren where surrounded on ALL sides by heretics!"
"Shush boy, Tankred speaks."