Complex sentence: After the death of his first wife Eileen O'Shaughnessy, Orwell became desperately lonely, and on 13 October 1949 married Brownell, three months before his death from tuberculosis.
Split into simpler sentences: After the death of his first wife Eileen O'Shaughnessy, Orwell became desperately lonely. On 13 October 1949, he married Brownell, only three months before his death from tuberculosis.