Complex sentence: Llewelyn died in August 1882 at his London home, Atherton Grange, Emma having died the previous year, and both are buried at Penllergaer Church, originally built by Llewelyn for his family and estate workers.
Split into simpler sentences: Llewelyn died in August 1882 at his London home, Atherton Grange. Emma died the previous year and both are buried at Penllergaer Church, originally built by Llewelyn for his family and estate workers.