Blenheim, South Carolina Blenheim, South Carolina Blenheim is a town in Marlboro County, South Carolina, United States. The population was 137 at the 2000 census. It is named for Blenheim Palace in Oxfordshire, England which itself is named for the Battle of Blenheim, a major English victory of the War of the Spanish Succession at what is now Blindheim, Germany. Blenheim Palace was the residence of the Duke of Marlborough, after whom Marlboro County is named. Blenheim Ginger Ale was originally bottled in Blenheim, with the local mineral water. Blenheim is located at (34.507513, -79.653088). According to the United States Census Bureau, the
Blenheim Palace as "The Temple of Diana" down by the lake, where in 1908 Winston Churchill proposed to his future wife. The extensive landscaped park, woodlands and formal gardens of Blenheim are Grade I listed on the Register of Historic Parks and Gardens. On the death of the 1st Duke in 1722, as both his sons were dead, he was succeeded by his daughter Henrietta. This was an unusual succession and required a special Act of Parliament, as only sons can usually succeed to a dukedom. When Henrietta died, the title passed to Marlborough's grandson Charles Spencer, Earl of Sunderland, whose mother