Robert Edward 9Th Baron Petre
Abt 1742 - 1801 (59 years)Drag or scroll to see more of the chart.
| William Bernard 12Th Baron Petre 1817-1884 |
| William Bernard 12Th Baron Petre | |
| B: | 20 Dec 1817 |
| D: | 4 Jul 1884 |
 | Mary Teresa (of Irnham) Clifford 1823-1895 |
| Mary Teresa (of Irnham) Clifford | |
| B: | 1 Sep 1823 |
| M: | 26 Sep 1843 |
| D: | 31 Dec 1895 |
| William Henry 11Th Baron Petre 1793-1850 |
| William Henry 11Th Baron Petre | |
| B: | 22 Jan 1793 |
| D: | 3 Jul 1850 |
| Robert Edward 10Th Baron Petre 1763-1809 |
| Robert Edward 10Th Baron Petre | |
| B: | 2 Sep 1763 |
| D: | 28 Mar 1809 |
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| Robert Edward 9Th Baron Petre Abt 1742-1801 |
| Robert Edward 9Th Baron Petre | |
| B: | Abt Feb 1742 |
| D: | 2 Jul 1801 |
| Anne (of Buckinham) Howard 1742-1787 |
| Anne (of Buckinham) Howard | |
| B: | 29 Aug 1742 |
| M: | 19 Apr 1762 |
| D: | 15 Jan 1787 |