| RefNo | Title |
| KMAN1/A/47/8/1 | Will of Ann, Countess of Suffolk |
| KMAN1/A/47A/8 | Title deeds to Montagu properties in Northamptonshire |
| KMAN1/A/47/7/1 | Copy will of Robert, 3rd Earl of Manchester |
| KMAN1/A/36/4 | Manuscript volume containing handwritten transcripts of letters, speeches and reports read in Parliament by King Charles and various M.Ps during the Petition of Rights crisis between 17 March and 21 Jun 1628 |
| KMAN1/A/47A/10 | Appointments and grants made by the Montagu family |
| KMAN1/A/7/28 | Lease of lands in Essex |
| KMAN1 | Records of the Montagu family of Kimbolton Castle |
| KMAN1/A/22A/5 | Title deeds to Montagu properties in Northamptonshire and Huntingdonshire |
| KMAN1/A/22A/3 | Title deeds to Montagu properties in Huntingdonshire |
| KMAN1/A/22A/10 | Conveyance of the Manor of Weston in Arden [Warks] |
| KMAN1/A/22B/14 | Papers relating to the Kimbolton estates purchased by Sir Henry Montagu |
| KMAN1/A/28/7/4 | Draft of a settlement to be made on the marriage of Robert, Lord Mandeville, and the daughter of Sir Christopher Yelverton |
| KMAN1/A/28/7/10 | The Earl of Manchester's answer to the Duke of York's demand for ten years arrears of rent for the Manor of Great Staughton |
| KMAN1/A/28/7/12 | Statements about the dispute between Charles Wilson, vicar of Kimbolton, and Edward Middleton |
| KMAN1/A/36/10 | Manuscript volume titled “Historical pedigree of the Montagus” by George Montagu |
| KMAN1/A/28/7/11 | Letter to the Earl of Manchester from W. Mosley |
| KMAN1/A/28/7/13 | Letter to the Earl of Manchester from W. Mosley |
| KMAN1/A/28/4/28 | Plan for the private interment of His Royal Highness Henry Duke of Gloucester |
| KMAN1/A/32/10/9 | Brief memorandum, signed by Ann Countess of Manchester, stating that Wollaston has returned her marriage settlement of 1655 |
| KMAN1/A/32/7/17 | Letter to the Earl of Manchester from John Heron, Godmanchester |
| KMAN1/A/32/7/16 | Letter recommending Monsieur Rozin as an "intelligent, secret and faithful" man |
| KMAN1/A/47/9 | Title deeds to Manchester estates in Kimbolton, Keyston, Stonely and Catworth |
| KMAN1/A/47A/15/1 | Commission by Robert, Earl of Manchester and Lord Lieutenant of Huntingdonshire, of Sir John Hewitt as Major of a Regiment of Foot raised in this county |
| KMAN1/A/47A/15/2 | Commission by Robert, Earl of Manchester and Lord Lieutenant of Huntingdonshire, of Lionel Walden as Cornet of a troop of horse under the command of Charles, Viscount Mandeville |
| KMAN1/A/47A/15/3 | Commission by Robert, Earl of Manchester and Lord Lieutenant of Huntingdonshire, of John Heron to be Captain of a Company of Foot |