The history of the Palace of Westminster began in the Middle Ages – in the early eighth century – when there was an Anglo-Saxon church dedicated to St. Peter the Apostle which became known as the West Minster (St. Paul's being the East Minster). In the tenth century the church became a Benedictine abbey and was adopted as a royal church, which subsequently became a royal palace in the 11th century.
Edward the Confessor, the penultimate Anglo-Saxon king, began the building of Westminster Abbey and a neighbouring palace to oversee its construction. After the Norman Conquest of 1066, William the Conqueror adopted the Palace of Westminster as his own.