Johanna II. (* 1 April 1948 at Schloss Klagenfurt, Firmar, born as Johanna Isabel Alexandra von Scharnwart-Firmar) was the eldest daughter of Duchess Johanna I Georgina of Rhöntal and Johannes Theodor von Seidlingen-Renmark). She is the Duchess and thereby head of state of Rhöntal. As Duchess she is mostly neutral towards politics.