“Romaian gypsies? But is there any difference from the Celtic travelers?”
The Roma are not Romanian, though there are Roma in Romania, as there are in most of Europe.
The Roma and Travellers are the same people, slightly different only in the names they choose.
http://www.coe.int/T/DG3/RomaTravellers/Default_en.asp
The origin of the Roma is India.
http://www.cbc.ca/newsinreview/dec97/gypsies/roma.html
Look up Roma on the Internet. They are an interesting and persecuted people, but not necessarily admirable.
Hank