Complex sentence: The building was in a very poor state by the mid 19th century, was restored in 1881 by J. E. K. Cutts and again by F.E. Howard c.1923.
Split into simpler sentences: The building was in a very poor state by the mid 19th century. It was restored in 1881 by J. E. K. Cutts and again by F.E. Howard c.1923.