Windsor is a suburban town to the east of London, on the south bank of the River Thames. The first settlement was at Old Windsor, a village three miles from the town, and the first Windsor Castle was built by William the Conqueror after the Norman conquest of 1066. The current castle was used from King Henry I’s reign onwards, and is the oldest occupied castle in Europe. A significant town in the Medieval Ages, due to the royal presence there, the town stagnated in the 16th and 17th centuries. George III reoccupied the castle from 1804 and two army barracks were built there which increased the population. A favourite of Queen Victoria, from 1840 the castle was much in use and with the introduction of a railway line in 1849, Windsor’s fortune was made. Now an extremely affluent town and the Queen’s favourite weekend residence, Windsor has some of the most expensive housing in the United Kingdom, a major royal presence and other notable inhabitants. The castle and old town are a popular tourist attraction, and it is a common mooring point for private boats travelling along the River Thames.