England–Wales border after Harold's death at the Battle of Hastings, Wales was again divided without a leader to resist the Normans. Immediately after the Norman conquest of England, King William installed one of his most trusted confidants, William FitzOsbern, as Earl of Hereford. By 1071 he had started the building of Chepstow Castle, the first castle in Britain built of stone, near the mouth of the Wye. It served as a base from which the Normans continued to expand westward into south Wales, establishing a castle at Caerleon and extinguishing the Welsh kingdom of Gwent. William also installed Roger de Montgomerie at
Wye River (plantation) Wye River (plantation) The Wye River plantation, or "Wye Hall" was the Eastern Shore of Maryland home of William Paca, constructed in 1765, and extensively renovated in 1790 by John Paca, with Joseph Clark as architect, at a cost of $20,000. He gained ownership of the property in Queen Anne's County, Maryland, through his wife, Mary Chew. John Beale Bordley and Margaret Chew inherited the other half of Wye Island. William Paca is buried at the family cemetery there. The Paca residence burned down in 1879. The University of Maryland, College Park conducted archeological work there. "Wye Hall" was built