I have not heard of these Briens, but am always searching for any Brien from Germany. I have only heard of maybe 4 or 5 in the 30 some years I have been searching for this families history. Our Brien family was from the Frankfurt area and only one brother came to America. I believe he came from the Chicago area ... but not for sure. I have a picture of a town and of a church from my Great Grandfather's things. He was born in 1819 in Germany, he married in 1872 and had my grandfather in in 1875. My father was born in 1915 .... so our generations have not turned over very fast. Would love to hear your Brien German connection. Thanks.