William Cavendish, 2nd. Duke of Devonshire KG PC
(Notes: You may have to scroll down or right to see chart.)
| Lady Catherine Ponsonby | 
| Lady Catherine Ponsonby | |
| B: | 14 Oct 1742 | 
| D: | 4 Sep 1789 | 
| Aubrey Beauclerk, 5th. Duke of St. Albans | |
| B: | 3 Jun 1740 | 
| D: | 9 Feb 1802 | 
| Lady Charlotte Ponsonby | 
| Lady Charlotte Ponsonby | |
| B: | Abt 1750 | 
| D: | 13 May 1822 | 
| William Fitzwilliam, 4th. Earl Fitzwilliam | |
| B: | 30 May 1748 | 
| Milton House, Peterborough, Northamptonshire, England | |
| D: | 8 Feb 1833 | 
| Milton House, Peterborough, Northamptonshire, England | |
| Frederick Ponsonby, 3rd. Earl of Bessborough | |
| B: | 24 Jan 1758 | 
| Bessborough, Ireland | |
| D: | 3 Feb 1844 | 
| Lady Henrietta Frances Spencer | 
| Lady Henrietta Frances Spencer | |
| B: | 16 Jun 1761 | 
| Althorp Manor, Brington, Northamptonshire, England | |
| D: | 11 Nov 1821 | 
| Italy | |
| Caroline Cavendish | 
| Caroline Cavendish | |
| B: | 22 May 1719 | 
| D: | 20 Jan 1760 | 
| William Ponsonby, 2nd. Earl of Bessborough | |
| B: | 1704 | 
| D: | 11 Mar 1793 | 
| William Cavendish, 5th. Duke of Devonshire, KG | |
| B: | 14 Dec 1748 | 
| D: | 29 Jul 1811 | 
| Devonshire House, Piccadilly, Middlesex, England | |
| Lady Georgiana Spencer, Duchess of Devonshire | |
| B: | 7 Jun 1757 | 
| Althorp Manor, Brington, Northamptonshire, England | |
| D: | 30 Mar 1806 | 
| Devonshire House, Piccadilly, Middlesex, England | |
| George Augustus Henry Cavendish, 1st. Earl of Burlington | |
| B: | 31 Mar 1754 | 
| Derbyshire, England | |
| D: | 4 May 1834 | 
| Piccadilly, Middlesex, England | |
| Lady Elizabeth Compton | 
| Lady Elizabeth Compton | |
| B: | 25 Jun 1760 | 
| Compton Wynyats, Warwickshire, England | |
| D: | 7 Apr 1835 | 
| Eastbourne, Sussex, England | |
| William Cavendish, 4th. Duke of Devonshire KG PC | |
| B: | 8 May 1720 | 
| D: | 2 Oct 1764 | 
| Spa, Holland | |
| Lady Charlotte Elizabeth Boyle, 6th. Baroness Clifford | |
| B: | 27 Oct 1731 | 
| D: | 8 Dec 1754 | 
| Uppingham, Rutland, England | |
| William Brabazon Ponsonby, 1st. Baron Ponsonby of Imokilly | |
| B: | 15 Sep 1744 | 
| Dublin, County Dublin, Ireland | |
| D: | 5 Nov 1806 | 
| London, England | |
| Hon. Louisa Molesworth | 
| Hon. Louisa Molesworth | |
| B: | 23 Oct 1749 | 
| Dublin, County Dublin, Ireland | |
| D: | 1 Sep 1824 | 
| Wentworth, Yorkshire, England | |
| Rt. Hon. George Ponsonby | 
| Rt. Hon. George Ponsonby | |
| B: | 5 Mar 1755 | 
| D: | 8 Jul 1817 | 
| Mayfair, Westminster, Middlesex, England | |
| Mary Butler | 
| Mary Butler | |
| B: | Unknown | 
| D: | Aft 1780 | 
| John Ponsonby | 
| John Ponsonby | |
| B: | Unknown | 
| D: | Unknown | 
| Richard Ponsonby | 
| Richard Ponsonby | |
| B: | Unknown | 
| D: | Unknown | 
| Frederick Ponsonby | 
| Frederick Ponsonby | |
| B: | Unknown | 
| D: | Unknown | 
| Catherine Ponsonby | 
| Catherine Ponsonby | |
| B: | Unknown | 
| D: | Unknown | 
| Richard Boyle, 2nd. Earl of Shannon | 
| Richard Boyle, 2nd. Earl of Shannon | |
| B: | Unknown | 
| D: | Unknown | 
| Frances Ponsonby | 
| Frances Ponsonby | |
| B: | Unknown | 
| D: | Unknown | 
| Cornelius O'Callaghan, 1st. Earl of Lismore | 
| Cornelius O'Callaghan, 1st. Earl of Lismore | |
| B: | Unknown | 
| D: | Unknown | 
| Charlotte Ponsonby | 
| Charlotte Ponsonby | |
| B: | Unknown | 
| D: | Unknown | 
| Rt. Hon. Denis Bowes Daly | 
| Rt. Hon. Denis Bowes Daly | |
| B: | Unknown | 
| D: | Unknown | 
| Henrietta Ponsonby | 
| Henrietta Ponsonby | |
| B: | Unknown | 
| D: | Unknown | 
| Lady Elizabeth Cavendish | 
| Lady Elizabeth Cavendish | |
| B: | 1723 | 
| D: | 1796 | 
| Rt. Hon. John Ponsonby | 
| Rt. Hon. John Ponsonby | |
| B: | 29 Mar 1713 | 
| D: | 12 Dec 1789 | 
| William Cavendish, 3rd.Duke of Devonshire KG PC | |
| B: | 26 Sep 1698 | 
| Bakewell, Derbyshire, England | |
| D: | 5 Dec 1755 | 
| City of London, London, England | |
| Katherine Hoskyns | 
| Katherine Hoskyns | |
| B: | 1698 | 
| D: | 8 May 1777 | 
  | 
| William Cavendish, 2nd. Duke of Devonshire KG PC | |
| B: | 1673 | 
| D: | 4 Jun 1729 | 
| Hon. Rachel Russell | 
| Hon. Rachel Russell | |
| B: | 1674 | 
| D: | 1725 | 
