Hi guys, You may see from my surname that I am a Ureche too. My father's parents came from a village called Casvana, Suceava county, from Bucovina (that's the way we spell it in Romanian). In that village most people are called Ureche, to the extent that I don't know how many could be distant relatives.
May be on your relatives' birth certificates you can read the name of the place???