Twin legacy name dilemma

My husband is RJH IV and has always wanted to name a son RJH V. We just found out we’re having twins. If it’s two girls he obviously won’t get to pass on the name. If it’s a boy and a girl, the boy will be named RJH V.

What do we do if it’s two boys? I have thought of naming one son RJH V, and the other would also have an important family name. Or do you think that would make one son feel inferior?