Wilhelm Von Habsburg wore the uniform of the Austrian officer, the court regalia of a Habsburg archduke, the simple suit of a Parisian exile, the collar of the Order of the Golden Fleece, and, every so often, a dress. He could handle a saber, a pistol, a rudder, or a golf club; he handled women by necessity and men for pleasure. He spoke the Italian of his archduchess mother, the German of his archduke father, the English of his British royal friends,...