Holders

• 1 Dudley Ryder, 1st earl of Harrowby * 1762
• 2 Dudley Ryder, 2nd earl of Harrowby * 1798
• 4 Henry Ryder, 4th earl of Harrowby * 1836
• 5 John Herbert Dudley Ryder, 5th earl of Harrowby * 1864
• 6 Dudley Ryder, 6th earl of Harrowby * 1892
• 7 Dudley Ryder, 7th earl of Harrowby * 1922
• 8 Conroy Ryder, 8th earl of Harrowby * 1951

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