Alnwick Castle was first constructed in 11th century CE, but most of what remains was constructed in the 14th and 15th centuries. The de Vescy family owned it first, but it was shortly purchased the Percy family. During the Middle Ages, it primarily served as a defensive fortress against the Scottish in the north. It has also been used as a garrison and a prison for enemies of Oliver Cromwell in the mid-17th century. It is currently still owned by the Percy Family and is a place of residence for the Duke of Northumberland.
In the late 17th and early 18th centuries, the castle underwent Gothic renovations, but was renovated again in the 1800s by Algernon Percy, the 4th Duke of Northumberland, to return to its medieval roots. Algernon Percy also decorated several rooms in the style of the Italian Renaissance. Algernon, a collector of Renaissance art and Roman artifacts, gathered sculptures and works by Titian, Tintoretto, Turner, and Claude Lorrain to decorate his new state rooms. (RD)
Source: Alnwick Castle Official Site (www.alnwickcastle.com)