Complex sentence: Originally constructed for the Ellys family, it burnt down in 1834 and was rebuilt in 1841 for the first Earl of Ripon, who lived at the steward's house in Nocton while the house was being built.
Split into simpler sentences: Originally constructed for the Ellys family, that burnt down in 1834 and was rebuilt in 1841 for the first Earl of Ripon. The Earl lived at the steward's house in Nocton while the house was being built.