Complex sentence: Founded in the 12th-century by the Earl of Leicester, it was dismantled in 1538, during the Dissolution of the Monasteries, and the building materials were reused in nearby Cavendish House.
Split into simpler sentences: Founded in the 12th century by the Earl of Leicester, it was dismantled in 1538 during the Dissolution of the Monasteries. The building materials were reused in nearby Cavendish House.