I have no idea who Trifko Grabez is. I looked him up on Wikipedia, you mean Trifun "Trifko" Grabež. Is he known widely where you are from?
I don't think it would be an issue unless you live in a former Yugoslav country and the people there still care about him. If it's common there it also isn't a problem,
Pavlo (also
Pavel) Sudoplatov assassinated
Yevhen Konovalets, and there are still Ukrainians called
Pavlo.
To me I just think of тривкість (tryvkist') "durability" said with a Russian accent. Or
Trifon.
But a note- I saw in your site activity that your name is
Fabiana so I'm assuming you're a girl. Trifko in the Balkans is a masculine name. Trifka would be feminine. Maybe you don't care but I thought I would tell you.