Deposited in the Royal Archives at its foundation, the Cumberland Papers comprise the military records of William Augustus, Duke of Cumberland from his command during the 1745–6 Jacobite Rebellion to 1757. These papers are sometimes referred to in conjunction with the Stuart Papers due to the wealth of information they provide regarding the Duke’s campaign against the Jacobite claimants.

The Cumberland Papers also contain records of the Duke’s tenure as Ranger of the Great Park at Windsor until his death in 1765. As with the Stuart Papers, the Cumberland Papers are now digitised and available to view on State Papers Online (institutional subscription required, or available to view at The National Archives).