 A domestic triumph for Wilhelm was when his daughter Victoria Louise married the Duke of Brunswick in 1913; this helped heal the rift between the House of Hanover and the House of Hohenzollern that had followed the annexation of Hanover by Prussia in 1866.In his first visit to Istanbul in 1889, Wilhelm secured the sale of German-made rifles to the Ottoman Army.Later on, he had his second political visit to the Ottoman Empire as a guest of Sultan Abdülhamid II.