Prince Leopold Clement Philipp August Maria of Saxe-Coburg and Gotha was an Austro-Hungarian officer and the heir apparent to the wealth of the House of Koháry. His death in a murder–suicide shocked the royal courts of Austria and Germany.

Princess Louise Marie Amélie of Belgium was the eldest child and daughter of King Leopold II and Queen Marie Henriette of Belgium. She was a member of the House of Wettin in the branch of Saxe-Coburg and Gotha. By her marriage with her first cousin once removed Prince Philipp of Saxe-Coburg and Gotha, she retained her birth titles of Princess of Saxe-Coburg and Gotha and Duchess in Saxony.