The former head of the Roman Catholic Church in Scotland is Cardinal Keith O'Brien .
The largest ethnic group among the Roman Catholic priesthood of Britain remains Irish ( in the United States , the upper ranks of the Church 's hierarchy are of predominantly Irish descent. )
The former head of the Church     in Scotland is Cardinal Keith O'Brien .
The largest ethnic group among the Roman Catholic priesthood of Britain remains Irish ( in the United States , the upper ranks of the Church 's hierarchy are of predominantly Irish descent. )