Blenheim Palace Blenheim Palace Blenheim Palace (pronounced ) is a monumental country house in Blenheim, Oxfordshire, England. It is the principal residence of the Dukes of Marlborough, and the only non-royal, non-episcopal country house in England to hold the title of palace. The palace, one of England's largest houses, was built between 1705 and 1722, and designated a UNESCO World Heritage Site in 1987. The palace is named for the 1704 Battle of Blenheim, and thus ultimately after Blindheim (also known as Blenheim) in Bavaria. It was originally intended to be a reward to John Churchill, 1st Duke of Marlborough for his
Blenheim Palace of the French royal flag to be tendered to the Monarch annually on the anniversary of the Battle of Blenheim. This flag is displayed by the Monarch on a 17th-century French writing table in Windsor Castle. Marlborough's wife was by all accounts a cantankerous woman, though capable of great charm. She had befriended the young Princess Anne and later, when the princess became Queen, the Duchess of Marlborough, as Her Majesty's Mistress of the Robes, exerted great influence over the Queen on both personal and political levels. The relationship between Queen and Duchess later became strained and fraught, and following