Name
- Coningsby, Thomas, 1st Earl of Coningsby1
- Cooke, Family1
- Corker, Edward1
- Courtenay, Family1
- Cox, Richard, Lord Chief Justice and Lord Chancellor of Ireland1
- Craycroft, Family1
- Crofts, George, of Churchtown, county Cork1
- Croke, Richard1
- Cromwell, Family1
- Crosby, W-1
- Crosse, Family1
- Crowland Abbey, Lincolnshire1
- Crowland, Family1
- Dalton, Family1
- Danvers, Family1
- Darell, Family1
- Davys, Henry, Commissioner of Enquiry into forfeited estates in Ireland, fl 1671-16901
- Dawkinson, Family1
- Deincourt, Family1
- Deneband, Family1