The present (Compton) Marquess holds the subsidiary titles of Earl of Northampton (1618), Earl Compton (1812), and Baron Wilmington (1812), the first in the Peerage of England, the latter two in the Peerage of the UK.
The 2nd Earl was killed at the Battle of Hopton Heath in 1643 fighting for his cause in the same battle his son and successor, James 3rd Earl of Northampton, was wounded.
The 5th Earl of Northampton circa 1730 added a wing between two towers on the east side of the house in the classical style, which was not in keeping at all.
For a short time the panelled rooms of Compton Wynyates were open to the public: the chapel overlooked by the chapel drawing room, the King's bedroom, the heavily panelled drawing and dining rooms with their moulded plaster ceilings, and works of art, such as the crucifixion by Matteo Balducci, were on limited public display.