Franziska Sontag (née Martloff or Markloff) (2 January 1787/89 – 10 April 1865) was a German operatic soprano and stage actress.
She received her first engagement at the Staatstheater Mainz and from there changed to the Theater Koblenz.
[1] Between 1812 and 1814 Martloff appeared at the Staatstheater Darmstadt and could be seen there together with August Wilhelm Iffland.
Martloff married her colleague, the actor Franz Sontag, and had two daughters with him, Henriette and Nina, both of whom later also went to the stage.
She died there on 10 April 1865 at age 77 and found her last resting place at the Old Catholic Cemetery in Dresden.