Nickname for third generation

My grandson who will be born in [name]April[/name] is going to be a third generation.
His name is [name]Ronny[/name] [name]Dean[/name] [name]Conn[/name] III.
My daughter does not like the nicknames trey or tripp for the normal nickname and was wondering if any one may have some suggestions?

[name]Trace[/name]?

[name]Connor[/name]?

Aw, I think [name]Trip[/name] is so cute. Maybe [name]Tri[/name], or Trio?

I’m from the deep south, and often “the thirds” are nicknamed Tres, the french number three. I’ve always liked this nickname.

I knew a IV named [name]Chip[/name]…I asked once how they devised that nickname and was told that it was for [name]Chip[/name] off the old block. He’s older than me and it worked all our lives.