Maybe 'Diaspora Croats'?
Also, you could add territory named Vrhbosna (was part of Croatian Kingdom, I think it is in northeastern Bosnia), so you could connect Subotica to Bosnia & Herzegovina
Vrhbosna doesn't exist today, but there is catholic archdiocese named Vrhbosna:
http://en.wikipedia.org/wiki/Roman_Catholic_Archdiocese_of_Vrhbosna
Edited 9/7/2013 16:46:30