Original sentence: in Vietnam's Annamite realm / empire, hau was a senior title of hereditary nobility, equivalent to marquis, for male members of the imperial clan, ranking under vuong (king), quoc-cong (grand duke), quan-cong (duke) and cong (prince, but here under duke, rather like a German Fürst), and above ba (count), tu (viscount), nam (baron) and vinh phong (no equivalent)
Edited sentence: in Vietnam's Annamite realm / empire, hau (Han tu: 侯) was a senior title of hereditary nobility, equivalent to marquis, for male members of the imperial clan, ranking under vuong (king), quoc-cong (grand duke), quan-cong (duke) and cong (prince, but here under duke, rather like a German Fürst), and above ba (count), tu (viscount), nam (baron) and vinh phong (no equivalent)