Complex sentence: The Earl bequeathed his substantial estates to his first cousin twice removed, the diplomat, politician and writer Sir Algernon Freeman-Mitford, the great-grandson of the historian William Mitford, elder brother of John Freeman-Mitford, 1st Baron Redesdale.
Split into simpler sentences: The Earl bequeathed his substantial estates to his first cousin twice removed, the diplomat, politician and writer Sir Algernon Freeman-Mitford. He was the great-grandson of the historian William Mitford, elder brother of John Freeman-Mitford, 1st Baron Redesdale.