Let's see, would him being fed only partial information regarding things that are relevant to him be a cheap way of generating potential conflicts and whatnot?
EDIT: Wait, shit, that already kinda is Tim's thing if I don't refine it further.
Let's see, what if Julius doesn't know his parents and the closest thing he has to a parental figure is Jonathan, and what he knows about his own bloodline he only knew from Jonathan (and whoever else might be close to him)? This might create somewhat of a contrasting parallel between him and Tim.
The contrast with Tim was actually planned, but not how you put it. I like your idea. The contrast was (and still will, why not) happen in another way. But having the "partial info" bit involving Jonathan can add more quality meat to it
Julius' parents is one of the biggest points I'm stumped on. I honestly do not want to focus on them, because this detracts from the "screentime" for other important stuff - Like Jonathan's final development. Yet I wonder if people would ACTUALLY want to know about them.
Honestly speaking, I couldn't form ANY relationship or origin or explanation for these parents. I tried, but it was so filmsy I had to let it go. I put a lot of effort on the ideas but ultimatelly they were scrapped because the parents served no useful, believable purpose. But recently I made this "decision" of having them not appear at all - yet this put me on the position of "what if people think this is cheap?".
What I can say is this: As of now, Julius' parents will probably not exist at all in the main plot. But this would be explained and interwined with Julius' destiny itself. "How" or "Why" they don't exist is up for studying further, but I can say I already have a somewhat formed idea of the "why" and how it relates to Julius becoming what he is.