Almut Leonhards (born 1943) (b. 1943) Children Constantin Prinz zu Sayn-Wittgenstein-Berleburg Isabelle Prinzessin zu Sayn-Wittgenstein-Berleburg Otto-Ludwig Prinz zu Sayn-Wittgenstein-Berleburg Partners Johann Stanislaus Prinz zu Sayn-Wittgenstein-Berleburg