Complex sentence: The manor house and surrounding land of Welsh Bicknor were seized from Richard Vaughan in 1651 because he was a Catholic and given to Phillip Nicholas of Llansoy, in Monmouthshire.
Split into simpler sentences: The manor house and surrounding land of Welsh Bicknor belonged to the Vaughan family. However, in 1651 Richard Vaughan, who was a Catholic, had his land sequestered and given to Phillip Nicholas of Llansoy, in Monmouthshire.