Complex sentence: In 1814 Matthews was moved to "Fox's London House", a private asylum in Hackney, where he became a popular and trusted patient, the asylum's owner, Dr. Fox, regarding him as sane.
Split into simpler sentences: In 1814 Matthews was moved to "Fox's London House", a private asylum in Hackney, where he became a popular and trusted patient. The asylum's owner, Dr. Fox, regarding him as sane.