Complex sentence: Alexander's wife, Elizabeth, died in 1845 aged 63, at the Priory; a house owned by George Barney, on what was part of the Crow's Nest estate, where they were living at the time.
Split into simpler sentences: Alexander's wife, Elizabeth, died in 1845 aged 63, at the Priory. A house owned by George Barney, on what was part of the Crow's Nest estate, where they were living at the time.