Name
- Choiseul, Étienne François de, Duc de Choiseul6
- Clayton, William, 1st Baron Sundon, Commissioner of the Treasury6
- Cockett, Thomas6
- Coke, Mary, widow of Edward Viscount Coke6
- Cole, William, Reverend; of Add MS 356186
- Colvile, Charles Robert, MP6
- Compton, Henry Combe, MP for S Hants6
- Conolly, Thomas, MP6
- Conyngham, Henry, 1st Marquess Conyngham6
- Coote, Charles Henry, 2nd Baron Castle Coote6
- Cornwallis, Frederic, Bishop of Lichfield and Coventry, afterwards Archbishop of Canterbury6
- Court of Exchequer6
- Coventry, George William, 6th Earl of Coventry6
- Cox, Richard, of Add MS 355056
- Cuffe, John Otway O'Connor, 3rd Earl of Desart, politician and statesman, 1818-18656
- Cuninghame, George, Colonel6
- Custance, William6
- Czartoryski, Adam Casimir, Prince6
- Daintry, Thomas, Treasurer of Cambridgeshire, fl 1782-17976
- Davies, David Arthur Saunders, barrister and politician, 1792-18576