In the middle of the 11th century, King Edward the Confessor had moved his court to the Palace of Westminster, situated on a central site near the river Thames.
In 1265 a parliament was created with two houses: the Lords and the Commons. The House of Lords met at the Palace of Westminster while the House of Commons did not have a permanent location.
After King Henry VIII moved his court to Whitehall Palace in 1530, the House of Lords continued to meet in Westminster. In 1547 the House of Commons also moved here, confirming Westminster as the central seat of government, a position it still holds today.