Hi Ana,
I don't know exactly about the origin.
My mom is a Cirstucea and she found evidence of a Carstucea who had emigrated in the US in the 1800's , became super rich and because no inheritors were found, his wealth became property of the US . Do you know anything about this legend? I can ask Mom to tell me more.
Let's keep in touch:
balasa_rebeca@yahoo.com