The title of Archduke (feminine: Archduchess) (German: Erzherzog, feminine -also spousal- form: Erzherzogin) denotes a rank above Duke and under King. It was rare and has uses too diverse to be given a fixed relative position within the former Holy Roman Empire to which it was restricted. It's only ever been continuously borne by princes of the House of Habsburg and later through the female line into the House of Habsburg-Lorraine. The first seventy-three people in the line of succession to th… (More on Archduchess)