Althorp Papers. Vol. mmdccxxxii. Views of Cowdray; drawings and watercolours by T. C. Dibden. The views show both the interior and exterior of the house; 1842.
Althorp Papers. Vol. xi. Estate papers chiefly relating to Northamptonshire and Warwickshire; [1545?]-1630. 330 x 210 mm. Unbound. Contents: 1. Papers relating to livery of seisin of lands of Sir John Spencer (d.1586) in Warwickshire and Northamptonshire; [1545?]-1566. Partly Latin. 2. Paper...