Complex sentence: After Charles' death in 1882, when he was 73, and she was 74, Emma spent the summers in Down House, and bought a large house called The Grove on Huntingdon Road in Cambridge, where she lived during the winters.
Split into simpler sentences: After Charles' death in 1882, when he was 73, and she was 74, Emma spent the summers in Down House. She bought a large house called The Grove on Huntingdon Road in Cambridge, and lived there during the winters.