Complex sentence: Cleveland House was re-designed in the Palazzo style by Sir Charles Barry in 1840 and the rebuilding was completed and renamed in 1854 for Lord Ellesmere, heir of the 3rd Duke of Bridgewater.
Split into simpler sentences: Cleveland House was re-designed in the Palazzo style by Sir Charles Barry in 1840. The rebuilding was completed and renamed in 1854 for Lord Ellesmere, heir of the 3rd Duke of Bridgewater.