Marquess of Lansdowne
Main board
| Name | ⚥ | Age in 2026 |
Position | From | Until | |
|---|---|---|---|---|---|---|
| 1 | Petty, William (1737-05-02) | M | 289 | PeeragePeerage | 1784-12-06 | 1805-05-07 |
| 2 | Petty, John Henry (1765-12-06) | M | 261 | PeeragePeerage | 1805-05-07 | 1809-11-15 |
| 3 | Petty-FitzMaurice, Henry (1780-07-02) | M | 246 | PeeragePeerage | 1809-11-15 | 1863-01-31 |
| 4 | Petty-FitzMaurice, Henry (1816-01-07) | M | 210 | PeeragePeerage | 1863-01-31 | 1866-07-05 |
| 5 | Petty-Fitzmaurice, Henry Charles Keith | M | 181 | PeeragePeerage | 1866-07-05 | 1927-06-03 |
| 6 | Petty-Fitzmaurice, Henry William Edmund | M | 154 | PeeragePeerage | 1927-06-03 | 1936-03-05 |
| 7 | Petty-Fitzmaurice, Charles Hope | M | 109 | PeeragePeerage | 1936-03-05 | 1944-08-20 |
| 8 | Mercer Nairne Petty-Fitzmaurice, George John Charles | M | 114 | PeeragePeerage | 1944-08-20 | 1999-08-25 |
| 9 | Petty-Fitzmaurice, Charles Maurice | M | 85 | PeeragePeerage | 1999-08-25 |
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