Such interesting middle names! I love [name_m]Peregrine[/name_m], but as another poster said, I think I would love [name_m]Pip[/name_m] or [name_m]Pippin[/name_m] as the nickname instead of [name_m]Penn[/name_m], but that is personal opinion 
[name_m]Charles[/name_m] [name_m]Peregrine[/name_m] sounds familiar, but unique and very usable to me. My fav of the bunch.
I love all of these, but [name_m]Charles[/name_m] [name_m]Shepherd[/name_m] “[name_m]Shep[/name_m]” is absolutely stunning!
Thank you! [name_m]Pip[/name_m]/[name_m]Pippin[/name_m] doesn’t bother me, but my husband wouldn’t agree to that! 
[name_u]Love[/name_u] [name_m]Charles[/name_m] [name_m]Peregrine[/name_m] so much!