Complex sentence: She was the only female in her traveling party, her brothers Lord Queensberry and Lord James Douglas, her husband Sir Alexander Beaumont Churchill Dixie, and Julius Beerbohm were her traveling companions.
Split into simpler sentences: She was the only female in her traveling party. Her brothers Lord Queensberry and Lord James Douglas, her husband Sir Alexander Beaumont Churchill Dixie, and Julius Beerbohm were her traveling companions.