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 their final quarrel in 1711, the money for the construction of Blenheim ceased. For political reasons the Marlboroughs went into exile on the Continent until they returned the day after the Queen's death on 1 August 1714. The estate given by the nation to Marlborough for the new palace was the manor of Woodstock, sometimes called the Palace of Woodstock, which had been a royal demesne, in reality little more than a deer park. Legend has obscured the manor's origins. King Henry I enclosed the park to contain the deer. Henry II housed his mistress Rosamund Clifford (sometimes known as