HSH Otto, Prince of Castell-Rüdenhausen and Sophia Mautner von Markhof were married on December 29, 2018 in a civil ceremony. The ceremony took place quietly as the new Princess of Rüdenhausen is mourning the death of her grandmother, Margherita.
The wedding took place at 11 a.m. at the Rathaus in Rüdenhausen. The witnesses for the wedding were the Hereditary Prince of Leiningen, Prince Joachim of Prussia and Duke Christoph of Oldenburg,
The newlyweds celebrated with close family and friends with a private lunch at the castle.
The religious wedding will take place on June 15, 2019, in Vienna, where the bride's family lives.