Thread:OppaiSenpai55/@comment-38696393-20200818152100/@comment-44261938-20200818152728

From Reinhard's 2018 Birthday Q&A:

''Q: From what Julius was saying, Reinhard was amazing from when he was little, but was he fairly strong even without the Blessing of the Master Swordsman? Also, around how many men's strength did he have as a child?''

''A: If, by 'When he was a child', you're referring to when Julius first saw him, then by that point his strength was at a level where the average royal knight couldn't take him on. Well, he wouldn't be able to defeat Julius or Commander Marcos, so in other words, he was at a level where he could defeat anyone without a name. That's without the 'Blessing of the Master Swordsman'.''

You can see that after stating that he would lose to Julius and Marcos, he elaborates by saying that he wouldn't be able to beat those "with a name". If he can't beat Julius, I doubt he can beat Wilhelm either. That he isn't a knight anymore aside, neither was Julius when Reinhard was 5 y/o, but he was once.