Hello Martin, There could very well be a connection.The only information I have so far is that he was born in 1876 in Breslan Bulgaria, as I search for Breslan and records I have hit a dead end, I do know for a fact know that he came from there as I have legal papers stating this. I also have been told that he had 2 sons over in Bulgaria names are believed to be Peter and Nick, but this has not been confirmed by any legal papers as of yet I am still trying to track these down. So it is possible that there may be a connection, your great grand father maybe a son of my grand father? I do not know yet. I have been communicating with some others and have confirmed that Petroff does come from Bulgaria.I don't know if you have searched this site yet but I will give it to you and you can check and see if there is any information on there that you may not have, as there are alot of people trying to search the Petroff family name. www.familysearch.org I have been able to access a little bit off here but some of the information is not correct. Do you have any other information about your great grand father? A place of birth? Thanks for repling. I will wait to here from you and see what other information you have.