User blog comment:SpookyBoogie27/Light Novel Spoilers/@comment-82.178.205.214-20140306194628/@comment-41.92.68.171-20140306222957

if  by lord bael you mean sairaorg then yes (the dude is even sending him presents)

but if you mean sairaorg's father then no.the only thing that we know about him is that he's rias' uncle (her mom's half brother) and didn't protect neither sairaorg nor his mother when they foundout that the kid hadn't power of destruction.