Complex sentence: Through the Leuchtenberg inheritance, the Norwegian royal family holds Joséphine's emerald and diamond tiara while the Swedish royal family holds her sapphire parure, amethyst tiara and the Cameo tiara, worn by Sweden's royal brides.
Split into simpler sentences: Through the Leuchtenberg inheritance, the Norwegian royal family possesses an emerald and diamond parure said to have been Joséphine's. The Swedish royal family owns several pieces of jewelry frequently linked to Joséphine, including the Leuchtenberg Sapphire Parure, a suite of amethyst jewels, and the Cameo Parure, worn by Sweden's royal brides.