Complex sentence: The manor and the village dated back to the Norman invasion being mentioned in the 1086 Domesday book and it while the original manor fell into disrepair in mediaeval times another house known as Grant's Mansion was recorded on the site in 1790.
Split into simpler sentences: The manor and the village dated back to the Norman invasion, being mentioned in the 1086 Domesday book. The original manor fell into disrepair in mediaeval times; another house known as Grant's Mansion was recorded on the site in 1790.