Robert Bertie, 1st Duke of Ancaster and Kesteven PC, styled 17th Baron Willoughby de Eresby between 1666 and 1701, and known as 4th Earl of Lindsey between 1701 and 1706, and as 1st Marquess of Lindsey between 1706 and 1715, was a British statesman and nobleman.
- Occupation
- politician
- Position held
- Member of Parliament in the Parliament of England, Member of the 1685-87 Parliament, Member of the 1689-90 Parliament, Member of the 1690-95 Parliament
- Citizenship
- Kingdom of England
- Born
