Archduke (feminine: Archduchess; German: Erzherzog, feminine form: Erzherzogin) was the title borne from 1358 by the Habsburg rulers of the Archduchy of Austria, and later by all senior members of that dynasty. It denotes a rank within the former Holy Roman Empire (962–1806), which was below that of Emperor and King and above that of (debatably) a Grand Duke, Duke and Prince. Archduke (feminine: Archduchess; German: Erzherzog, feminine form: Erzherzogin) was the title borne from 1358 by the Habsburg rulers of the Archduchy of Austria, and later by all senior members of that dynasty. It denotes a rank within the former Holy Roman Empire (962–1806), which was below that of Emperor and King and above that of (debatably) a Grand Duke, Duke and Prince.