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| Richard Southwell Bourke, 6th Earl of Mayo | |
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| Date (from) | (Date to) | Event |
| 21 February 1822 | | Born (Dublin). |
| 1841 | | Entered Trinity College, Dublin. |
| 1845 | | Tour of Russia. |
| 1847 | March 1852 | M.P. (Conservative) for county of Kildare. |
| 31 October 1848 | | Married Blanche Julia Wyndham, 4th daughter of 1st Lord Leconfield. |
| 1849 | | Assumed courtesy title of Lord Naas on death of grandfather. |
| March 1852 | March 1857 | M.P. for borough of Colraine. |
| March 1852 | December 1852 | Chief secretary for Ireland in Derby's first administrations. |
| March 1857 | 12 August 1867 | M.P. for borough of Cockermouth (until he succeded to title). |
| March 1858 | June 1859 | Chief secretary for Ireland in Derby's second administration. |
| July 1866 | December 1868 | Chief secretary for Ireland in Derby's third and Disraeli's first administrations. |
| 12 August 1867 | | Succeded to title of Earl of Mayo. |
| 12 January 1869 | | Viceroy and Governor-general of India. |
| 8 February 1872 | | Died (assassinated at Port Blair, Andaman islands). |
| Literature: (DNB; Hunter; Stenton). |