Johann Stanislaus Prinz zu Sayn-Wittgenstein-Berleburg (born 1939) (b. 1939) Parents Friederike Juliane Prinzessin zu Salm-Horstmar Prince Ludwig Ferdinand of Sayn-Wittgenstein-Berleburg Children Otto-Ludwig Prinz zu Sayn-Wittgenstein-Berleburg Isabelle Prinzessin zu Sayn-Wittgenstein-Berleburg Constantin Prinz zu Sayn-Wittgenstein-Berleburg Siblings Prince Ludwig Ferdinand of Sayn-Wittgenstein-Berleburg Ulrike-Christine Prinzessin zu Sayn-Wittgenstein-Berleburg Marita Prinzessin zu Sayn-Wittgenstein-Berleburg Otto-Ludwig Prinz zu Sayn-Wittgenstein-Berleburg Partners Almut Leonhards