Old Windsor is a village and civil parish, in the Royal Borough of Windsor and Maidenhead, in Berkshire, England. It is bounded by the River Thames to the east and the Windsor Great Park to the west. The name originates from old English Windles-ore, Windlesora, or winch by the riverside. The village was originally called Windsor, until the town of "…Old Windsor is a village and civil parish, in the Royal Borough of Windsor and Maidenhead, in Berkshire, England. It is bounded by the River Thames to the east and the Windsor Great Park to the west. The name originates from old English Windles-ore, Windlesora, or winch by the riverside. The village was originally called Windsor, until the town of "New" Windsor, 3 miles from the village, grew up next to Windsor Castle and assumed the name. Windsor is first mentioned in the Anglo-Saxon Chronicle.